3645976 has 16 divisors (see below), whose sum is σ = 6966000. Its totient is φ = 1788384.

The previous prime is 3645959. The next prime is 3645977. The reversal of 3645976 is 6795463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645977) 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, 3876 + ... + 4723.

It is an arithmetic number, because the mean of its divisors is an integer number (435375).

Almost surely, 2^3645976 is an apocalyptic number.

It is an amenable number.

3645976 is a deficient number, since it is larger than the sum of its proper divisors (3320024).

3645976 is a wasteful number, since it uses less digits than its factorization.

3645976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8658 (or 8654 counting only the distinct ones).

The product of its digits is 136080, while the sum is 40.

The square root of 3645976 is about 1909.4438981023. The cubic root of 3645976 is about 153.9115700782.

The spelling of 3645976 in words is "three million, six hundred forty-five thousand, nine hundred seventy-six".