70645732 has 12 divisors (see below), whose sum is σ = 126505456. Its totient is φ = 34501320.

The previous prime is 70645721. The next prime is 70645733. The reversal of 70645732 is 23754607.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70645733) 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, 205194 + ... + 205537.

Almost surely, 2^70645732 is an apocalyptic number.

It is an amenable number.

70645732 is a deficient number, since it is larger than the sum of its proper divisors (55859724).

70645732 is a wasteful number, since it uses less digits than its factorization.

70645732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410778 (or 410776 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 70645732 is about 8405.1015460850. The cubic root of 70645732 is about 413.3919130178.

The spelling of 70645732 in words is "seventy million, six hundred forty-five thousand, seven hundred thirty-two".