72649364 has 24 divisors (see below), whose sum is σ = 140470848. Its totient is φ = 32700800.

The previous prime is 72649363. The next prime is 72649391. The reversal of 72649364 is 46394627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72649361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21662 + ... + 24789.

It is an arithmetic number, because the mean of its divisors is an integer number (5852952).

Almost surely, 2^72649364 is an apocalyptic number.

It is an amenable number.

72649364 is a deficient number, since it is larger than the sum of its proper divisors (67821484).

72649364 is a wasteful number, since it uses less digits than its factorization.

72649364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46495 (or 46493 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 72649364 is about 8523.4596262316. The cubic root of 72649364 is about 417.2637007698.

The spelling of 72649364 in words is "seventy-two million, six hundred forty-nine thousand, three hundred sixty-four".