970890979 has 2 divisors, whose sum is σ = 970890980. Its totient is φ = 970890978.

The previous prime is 970890967. The next prime is 970891001. The reversal of 970890979 is 979098079.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 970890979 - 2²⁷ = 836673251 is a prime.

It is not a weakly prime, because it can be changed into another prime (970890919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485445489 + 485445490.

It is an arithmetic number, because the mean of its divisors is an integer number (485445490).

Almost surely, 2^970890979 is an apocalyptic number.

970890979 is a deficient number, since it is larger than the sum of its proper divisors (1).

970890979 is an equidigital number, since it uses as much as digits as its factorization.

970890979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2571912, while the sum is 58.

The square root of 970890979 is about 31159.1235274678. The cubic root of 970890979 is about 990.2012919267.

The spelling of 970890979 in words is "nine hundred seventy million, eight hundred ninety thousand, nine hundred seventy-nine".