72837680 has 20 divisors (see below), whose sum is σ = 169347792. Its totient is φ = 29135040.

The previous prime is 72837649. The next prime is 72837727. The reversal of 72837680 is 8673827.

It is a tau number, because it is divible by the number of its divisors (20).

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, 455156 + ... + 455315.

Almost surely, 2^72837680 is an apocalyptic number.

It is an amenable number.

72837680 is an abundant number, since it is smaller than the sum of its proper divisors (96510112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72837680 is a wasteful number, since it uses less digits than its factorization.

72837680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910484 (or 910478 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 72837680 is about 8534.4993994961. The cubic root of 72837680 is about 417.6239224807.

The spelling of 72837680 in words is "seventy-two million, eight hundred thirty-seven thousand, six hundred eighty".