70918872 has 32 divisors (see below), whose sum is σ = 178599600. Its totient is φ = 23465984.

The previous prime is 70918871. The next prime is 70918901. The reversal of 70918872 is 27881907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70918871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7497 + ... + 14072.

Almost surely, 2^70918872 is an apocalyptic number.

It is an amenable number.

70918872 is an abundant number, since it is smaller than the sum of its proper divisors (107680728).

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

70918872 is a wasteful number, since it uses less digits than its factorization.

70918872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21715 (or 21711 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 70918872 is about 8421.3343360776. The cubic root of 70918872 is about 413.9239982775.

The spelling of 70918872 in words is "seventy million, nine hundred eighteen thousand, eight hundred seventy-two".