72655794 has 12 divisors (see below), whose sum is σ = 157420926. Its totient is φ = 24218592.

The previous prime is 72655789. The next prime is 72655799. The reversal of 72655794 is 49755627.

72655794 is a `hidden beast` number, since 7 + 2 + 6 + 557 + 94 = 666.

It is an interprime number because it is at equal distance from previous prime (72655789) and next prime (72655799).

It can be written as a sum of positive squares in only one way, i.e., 57562569 + 15093225 = 7587^2 + 3885^2 .

It is not an unprimeable number, because it can be changed into a prime (72655799) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2018199 + ... + 2018234.

Almost surely, 2^72655794 is an apocalyptic number.

72655794 is an abundant number, since it is smaller than the sum of its proper divisors (84765132).

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

72655794 is a wasteful number, since it uses less digits than its factorization.

72655794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036441 (or 4036438 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 72655794 is about 8523.8368121404. The cubic root of 72655794 is about 417.2760107030.

The spelling of 72655794 in words is "seventy-two million, six hundred fifty-five thousand, seven hundred ninety-four".