70564690 has 64 divisors (see below), whose sum is σ = 155312640. Its totient is φ = 22556160.

The previous prime is 70564673. The next prime is 70564693. The reversal of 70564690 is 9646507.

It is a super-2 number, since 2×70564690² = 9958750949592200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70564693) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 65476 + ... + 66544.

It is an arithmetic number, because the mean of its divisors is an integer number (2426760).

Almost surely, 2^70564690 is an apocalyptic number.

70564690 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70564690 is an abundant number, since it is smaller than the sum of its proper divisors (84747950).

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

70564690 is a wasteful number, since it uses less digits than its factorization.

70564690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 70564690 is about 8400.2791620279. The cubic root of 70564690 is about 413.2337768955.

The spelling of 70564690 in words is "seventy million, five hundred sixty-four thousand, six hundred ninety".