3656697 has 16 divisors (see below), whose sum is σ = 5503680. Its totient is φ = 2139200.

The previous prime is 3656689. The next prime is 3656699. The reversal of 3656697 is 7966563.

It is a cyclic number.

It is not a de Polignac number, because 3656697 - 2³ = 3656689 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3656699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954 + ... + 2867.

It is an arithmetic number, because the mean of its divisors is an integer number (343980).

Almost surely, 2^3656697 is an apocalyptic number.

It is an amenable number.

3656697 is a deficient number, since it is larger than the sum of its proper divisors (1846983).

3656697 is a wasteful number, since it uses less digits than its factorization.

3656697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864.

The product of its digits is 204120, while the sum is 42.

The square root of 3656697 is about 1912.2491992416. The cubic root of 3656697 is about 154.0622815492.

It can be divided in two parts, 36566 and 97, that added together give a palindrome (36663).

The spelling of 3656697 in words is "three million, six hundred fifty-six thousand, six hundred ninety-seven".