916420979 has 2 divisors, whose sum is σ = 916420980. Its totient is φ = 916420978.

The previous prime is 916420969. The next prime is 916421059. The reversal of 916420979 is 979024619.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 916420979 - 2⁸ = 916420723 is a prime.

It is not a weakly prime, because it can be changed into another prime (916420969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458210489 + 458210490.

It is an arithmetic number, because the mean of its divisors is an integer number (458210490).

Almost surely, 2^916420979 is an apocalyptic number.

916420979 is a deficient number, since it is larger than the sum of its proper divisors (1).

916420979 is an equidigital number, since it uses as much as digits as its factorization.

916420979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 916420979 is about 30272.4458707915. The cubic root of 916420979 is about 971.3259858273.

The spelling of 916420979 in words is "nine hundred sixteen million, four hundred twenty thousand, nine hundred seventy-nine".