970391808 has 54 divisors (see below), whose sum is σ = 2797885454. Its totient is φ = 323463168.

The previous prime is 970391803. The next prime is 970391833. The reversal of 970391808 is 808193079.

It can be written as a sum of positive squares in only one way, i.e., 764411904 + 205979904 = 27648^2 + 14352^2 .

It is a super-2 number, since 2×970391808² = 1883320522067017728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (970391803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208285 + ... + 212892.

Almost surely, 2^970391808 is an apocalyptic number.

It is an amenable number.

970391808 is an abundant number, since it is smaller than the sum of its proper divisors (1827493646).

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

970391808 is a wasteful number, since it uses less digits than its factorization.

970391808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421199 (or 421182 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 970391808 is about 31151.1124680965. The cubic root of 970391808 is about 990.0315631198.

The spelling of 970391808 in words is "nine hundred seventy million, three hundred ninety-one thousand, eight hundred eight".