70688872 has 16 divisors (see below), whose sum is σ = 133014240. Its totient is φ = 35218416.

The previous prime is 70688869. The next prime is 70688923. The reversal of 70688872 is 27888607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13348 + ... + 17875.

It is an arithmetic number, because the mean of its divisors is an integer number (8313390).

Almost surely, 2^70688872 is an apocalyptic number.

It is an amenable number.

70688872 is a deficient number, since it is larger than the sum of its proper divisors (62325368).

70688872 is a wasteful number, since it uses less digits than its factorization.

70688872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31512 (or 31508 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 70688872 is about 8407.6674529860. The cubic root of 70688872 is about 413.4760421779.

The spelling of 70688872 in words is "seventy million, six hundred eighty-eight thousand, eight hundred seventy-two".