977382431 has 2 divisors, whose sum is σ = 977382432. Its totient is φ = 977382430.

The previous prime is 977382403. The next prime is 977382433. The reversal of 977382431 is 134283779.

977382431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-977382431 is a prime.

It is a super-2 number, since 2×977382431² = 1910552832854939522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 977382433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977382433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488691215 + 488691216.

It is an arithmetic number, because the mean of its divisors is an integer number (488691216).

Almost surely, 2^977382431 is an apocalyptic number.

977382431 is a deficient number, since it is larger than the sum of its proper divisors (1).

977382431 is an equidigital number, since it uses as much as digits as its factorization.

977382431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 977382431 is about 31263.1161434685. The cubic root of 977382431 is about 992.4032457968.

The spelling of 977382431 in words is "nine hundred seventy-seven million, three hundred eighty-two thousand, four hundred thirty-one".