3639772 has 24 divisors (see below), whose sum is σ = 6652800. Its totient is φ = 1740480.

The previous prime is 3639763. The next prime is 3639781. The reversal of 3639772 is 2779363.

It is an interprime number because it is at equal distance from previous prime (3639763) and next prime (3639781).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18378 + ... + 18574.

It is an arithmetic number, because the mean of its divisors is an integer number (277200).

Almost surely, 2^3639772 is an apocalyptic number.

It is an amenable number.

3639772 is a deficient number, since it is larger than the sum of its proper divisors (3013028).

3639772 is a wasteful number, since it uses less digits than its factorization.

3639772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 379 counting only the distinct ones).

The product of its digits is 47628, while the sum is 37.

The square root of 3639772 is about 1907.8186496625. The cubic root of 3639772 is about 153.8242217710.

The spelling of 3639772 in words is "three million, six hundred thirty-nine thousand, seven hundred seventy-two".