72543608 has 16 divisors (see below), whose sum is σ = 137059560. Its totient is φ = 35994400.

The previous prime is 72543599. The next prime is 72543617. The reversal of 72543608 is 80634527.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72543599) and next prime (72543617).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33563 + ... + 35658.

Almost surely, 2^72543608 is an apocalyptic number.

It is an amenable number.

72543608 is a deficient number, since it is larger than the sum of its proper divisors (64515952).

72543608 is a wasteful number, since it uses less digits than its factorization.

72543608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69358 (or 69354 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 72543608 is about 8517.2535479461. The cubic root of 72543608 is about 417.0611315738.

The spelling of 72543608 in words is "seventy-two million, five hundred forty-three thousand, six hundred eight".