70490856 has 16 divisors (see below), whose sum is σ = 176227200. Its totient is φ = 23496944.

The previous prime is 70490843. The next prime is 70490897. The reversal of 70490856 is 65809407.

It is a super-2 number, since 2×70490856² = 9937921559225472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1468536 + ... + 1468583.

It is an arithmetic number, because the mean of its divisors is an integer number (11014200).

Almost surely, 2^70490856 is an apocalyptic number.

It is an amenable number.

70490856 is an abundant number, since it is smaller than the sum of its proper divisors (105736344).

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

70490856 is a wasteful number, since it uses less digits than its factorization.

70490856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937128 (or 2937124 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 70490856 is about 8395.8832769400. The cubic root of 70490856 is about 413.0896002055.

The spelling of 70490856 in words is "seventy million, four hundred ninety thousand, eight hundred fifty-six".