70645712 has 10 divisors (see below), whose sum is σ = 136876098. Its totient is φ = 35322848.

The previous prime is 70645709. The next prime is 70645717. The reversal of 70645712 is 21754607.

It can be written as a sum of positive squares in only one way, i.e., 70627216 + 18496 = 8404^2 + 136^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70645717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2207663 + ... + 2207694.

Almost surely, 2^70645712 is an apocalyptic number.

It is an amenable number.

70645712 is a deficient number, since it is larger than the sum of its proper divisors (66230386).

70645712 is a wasteful number, since it uses less digits than its factorization.

70645712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415365 (or 4415359 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 70645712 is about 8405.1003563313. The cubic root of 70645712 is about 413.3918740070.

The spelling of 70645712 in words is "seventy million, six hundred forty-five thousand, seven hundred twelve".