3320657 has 4 divisors (see below), whose sum is σ = 3375156. Its totient is φ = 3266160.

The previous prime is 3320651. The next prime is 3320663. The reversal of 3320657 is 7560233.

3320657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7560233 = 19 ⋅397907.

It is an interprime number because it is at equal distance from previous prime (3320651) and next prime (3320663).

It can be written as a sum of positive squares in 2 ways, for example, as 226576 + 3094081 = 476^2 + 1759^2 .

It is a cyclic number.

It is not a de Polignac number, because 3320657 - 2¹⁰ = 3319633 is a prime.

It is a super-2 number, since 2×3320657² = 22053525823298, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3320651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27158 + ... + 27279.

It is an arithmetic number, because the mean of its divisors is an integer number (843789).

Almost surely, 2^3320657 is an apocalyptic number.

It is an amenable number.

3320657 is a deficient number, since it is larger than the sum of its proper divisors (54499).

3320657 is an equidigital number, since it uses as much as digits as its factorization.

3320657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54498.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 3320657 is about 1822.2669947074. The cubic root of 3320657 is about 149.1905584041.

The spelling of 3320657 in words is "three million, three hundred twenty thousand, six hundred fifty-seven".