70724936 has 16 divisors (see below), whose sum is σ = 133501500. Its totient is φ = 35124544.

The previous prime is 70724933. The next prime is 70724957. The reversal of 70724936 is 63942707.

It can be written as a sum of positive squares in 2 ways, for example, as 66748900 + 3976036 = 8170^2 + 1994^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70724936.

It is not an unprimeable number, because it can be changed into a prime (70724933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28475 + ... + 30858.

Almost surely, 2^70724936 is an apocalyptic number.

It is an amenable number.

70724936 is a deficient number, since it is larger than the sum of its proper divisors (62776564).

70724936 is a wasteful number, since it uses less digits than its factorization.

70724936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59488 (or 59484 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 70724936 is about 8409.8118885026. The cubic root of 70724936 is about 413.5463458641.

The spelling of 70724936 in words is "seventy million, seven hundred twenty-four thousand, nine hundred thirty-six".