3660997 has 4 divisors (see below), whose sum is σ = 3669120. Its totient is φ = 3652876.

The previous prime is 3660961. The next prime is 3661019. The reversal of 3660997 is 7990663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7990663 = 17 ⋅470039.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3660997 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3660497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3343 + ... + 4300.

It is an arithmetic number, because the mean of its divisors is an integer number (917280).

Almost surely, 2^3660997 is an apocalyptic number.

It is an amenable number.

3660997 is a deficient number, since it is larger than the sum of its proper divisors (8123).

3660997 is an equidigital number, since it uses as much as digits as its factorization.

3660997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8122.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 3660997 is about 1913.3731993524. The cubic root of 3660997 is about 154.1226464368.

The spelling of 3660997 in words is "three million, six hundred sixty thousand, nine hundred ninety-seven".