70636672 has 16 divisors (see below), whose sum is σ = 140721750. Its totient is φ = 35318272.

The previous prime is 70636667. The next prime is 70636711. The reversal of 70636672 is 27663607.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63107136 + 7529536 = 7944^2 + 2744^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×70636672³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275797 + ... + 276052.

Almost surely, 2^70636672 is an apocalyptic number.

It is an amenable number.

70636672 is a deficient number, since it is larger than the sum of its proper divisors (70085078).

70636672 is an equidigital number, since it uses as much as digits as its factorization.

70636672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551863 (or 551851 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 70636672 is about 8404.5625704138. The cubic root of 70636672 is about 413.3742403727.

The spelling of 70636672 in words is "seventy million, six hundred thirty-six thousand, six hundred seventy-two".