3320639 has 8 divisors (see below), whose sum is σ = 3897888. Its totient is φ = 2769120.

The previous prime is 3320623. The next prime is 3320651. The reversal of 3320639 is 9360233.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3320639 - 2⁴ = 3320623 is a prime.

It is a super-2 number, since 2×3320639² = 22053286736642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3320699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6152 + ... + 6669.

It is an arithmetic number, because the mean of its divisors is an integer number (487236).

Almost surely, 2^3320639 is an apocalyptic number.

3320639 is a deficient number, since it is larger than the sum of its proper divisors (577249).

3320639 is a wasteful number, since it uses less digits than its factorization.

3320639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12865.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 3320639 is about 1822.2620557977. The cubic root of 3320639 is about 149.1902888355.

The spelling of 3320639 in words is "three million, three hundred twenty thousand, six hundred thirty-nine".