977990023 has 2 divisors, whose sum is σ = 977990024. Its totient is φ = 977990022.

The previous prime is 977990017. The next prime is 977990029. The reversal of 977990023 is 320099779.

It is a balanced prime because it is at equal distance from previous prime (977990017) and next prime (977990029).

It is a cyclic number.

It is not a de Polignac number, because 977990023 - 2⁹ = 977989511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977990029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488995011 + 488995012.

It is an arithmetic number, because the mean of its divisors is an integer number (488995012).

Almost surely, 2^977990023 is an apocalyptic number.

977990023 is a deficient number, since it is larger than the sum of its proper divisors (1).

977990023 is an equidigital number, since it uses as much as digits as its factorization.

977990023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326, while the sum is 46.

The square root of 977990023 is about 31272.8320271766. The cubic root of 977990023 is about 992.6088464399.

The spelling of 977990023 in words is "nine hundred seventy-seven million, nine hundred ninety thousand, twenty-three".