72826634 has 4 divisors (see below), whose sum is σ = 109239954. Its totient is φ = 36413316.

The previous prime is 72826613. The next prime is 72826651. The reversal of 72826634 is 43662827.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72301009 + 525625 = 8503^2 + 725^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18206657 + ... + 18206660.

Almost surely, 2^72826634 is an apocalyptic number.

72826634 is a deficient number, since it is larger than the sum of its proper divisors (36413320).

72826634 is a wasteful number, since it uses less digits than its factorization.

72826634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36413319.

The product of its digits is 96768, while the sum is 38.

The square root of 72826634 is about 8533.8522368272. The cubic root of 72826634 is about 417.6028102073.

The spelling of 72826634 in words is "seventy-two million, eight hundred twenty-six thousand, six hundred thirty-four".