72957678 has 16 divisors (see below), whose sum is σ = 150947280. Its totient is φ = 23480576.

The previous prime is 72957641. The next prime is 72957697. The reversal of 72957678 is 87675927.

It is a self number, because there is not a number n which added to its sum of digits gives 72957678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209475 + ... + 209822.

It is an arithmetic number, because the mean of its divisors is an integer number (9434205).

Almost surely, 2^72957678 is an apocalyptic number.

72957678 is an abundant number, since it is smaller than the sum of its proper divisors (77989602).

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

72957678 is a wasteful number, since it uses less digits than its factorization.

72957678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419331.

The product of its digits is 1481760, while the sum is 51.

The square root of 72957678 is about 8541.5266785277. The cubic root of 72957678 is about 417.8531378179.

The spelling of 72957678 in words is "seventy-two million, nine hundred fifty-seven thousand, six hundred seventy-eight".