70972538 has 32 divisors (see below), whose sum is σ = 133830144. Its totient is φ = 27476352.

The previous prime is 70972519. The next prime is 70972591. The reversal of 70972538 is 83527907.

It is a super-2 number, since 2×70972538² = 10074202300322888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70972495 and 70972504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4406 + ... + 12702.

It is an arithmetic number, because the mean of its divisors is an integer number (4182192).

Almost surely, 2^70972538 is an apocalyptic number.

70972538 is a deficient number, since it is larger than the sum of its proper divisors (62857606).

70972538 is a wasteful number, since it uses less digits than its factorization.

70972538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8366.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 70972538 is about 8424.5200456762. The cubic root of 70972538 is about 414.0283806693.

The spelling of 70972538 in words is "seventy million, nine hundred seventy-two thousand, five hundred thirty-eight".