72579022 has 4 divisors (see below), whose sum is σ = 108868536. Its totient is φ = 36289510.

The previous prime is 72579019. The next prime is 72579041. The reversal of 72579022 is 22097527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22097527 = 359 ⋅61553.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18144754 + ... + 18144757.

It is an arithmetic number, because the mean of its divisors is an integer number (27217134).

Almost surely, 2^72579022 is an apocalyptic number.

72579022 is a deficient number, since it is larger than the sum of its proper divisors (36289514).

72579022 is a wasteful number, since it uses less digits than its factorization.

72579022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36289513.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 72579022 is about 8519.3322508281. The cubic root of 72579022 is about 417.1289868522.

The spelling of 72579022 in words is "seventy-two million, five hundred seventy-nine thousand, twenty-two".