3665907 has 12 divisors (see below), whose sum is σ = 6051760. Its totient is φ = 2094768.

The previous prime is 3665903. The next prime is 3665911. The reversal of 3665907 is 7095663.

It is a happy number.

3665907 is a `hidden beast` number, since 3 + 66 + 590 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (3665903) and next prime (3665911).

It is not a de Polignac number, because 3665907 - 2² = 3665903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3665903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29032 + ... + 29157.

Almost surely, 2^3665907 is an apocalyptic number.

3665907 is a deficient number, since it is larger than the sum of its proper divisors (2385853).

3665907 is a wasteful number, since it uses less digits than its factorization.

3665907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58202 (or 58199 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 3665907 is about 1914.6558437484. The cubic root of 3665907 is about 154.1915169421.

The spelling of 3665907 in words is "three million, six hundred sixty-five thousand, nine hundred seven".