70643684 has 12 divisors (see below), whose sum is σ = 123708144. Its totient is φ = 35298504.

The previous prime is 70643669. The next prime is 70643717. The reversal of 70643684 is 48634607.

It is a happy number.

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, 2207 + ... + 12089.

It is an arithmetic number, because the mean of its divisors is an integer number (10309012).

Almost surely, 2^70643684 is an apocalyptic number.

It is an amenable number.

70643684 is a deficient number, since it is larger than the sum of its proper divisors (53064460).

70643684 is a wasteful number, since it uses less digits than its factorization.

70643684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11674 (or 11672 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 70643684 is about 8404.9797144312. The cubic root of 70643684 is about 413.3879182739.

The spelling of 70643684 in words is "seventy million, six hundred forty-three thousand, six hundred eighty-four".