70436856 has 64 divisors (see below), whose sum is σ = 210009600. Its totient is φ = 19248768.

The previous prime is 70436837. The next prime is 70436869. The reversal of 70436856 is 65863407.

It is a super-2 number, since 2×70436856² = 9922701366329472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5251 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (3281400).

Almost surely, 2^70436856 is an apocalyptic number.

It is an amenable number.

70436856 is an abundant number, since it is smaller than the sum of its proper divisors (139572744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70436856 is a wasteful number, since it uses less digits than its factorization.

70436856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18268 (or 18264 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 70436856 is about 8392.6667990574. Note that the first 3 decimals coincide. The cubic root of 70436856 is about 412.9840898920.

The spelling of 70436856 in words is "seventy million, four hundred thirty-six thousand, eight hundred fifty-six".