72971358 has 16 divisors (see below), whose sum is σ = 147282960. Its totient is φ = 24100416.

The previous prime is 72971333. The next prime is 72971369. The reversal of 72971358 is 85317927.

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, 55135 + ... + 56442.

It is an arithmetic number, because the mean of its divisors is an integer number (9205185).

Almost surely, 2^72971358 is an apocalyptic number.

72971358 is an abundant number, since it is smaller than the sum of its proper divisors (74311602).

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

72971358 is a wasteful number, since it uses less digits than its factorization.

72971358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111691.

The product of its digits is 105840, while the sum is 42.

The square root of 72971358 is about 8542.3274346047. The cubic root of 72971358 is about 417.8792528380.

The spelling of 72971358 in words is "seventy-two million, nine hundred seventy-one thousand, three hundred fifty-eight".