977042347 has 2 divisors, whose sum is σ = 977042348. Its totient is φ = 977042346.

The previous prime is 977042317. The next prime is 977042357. The reversal of 977042347 is 743240779.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-977042347 is a prime.

It is a super-2 number, since 2×977042347² = 1909223495662536818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (977042317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488521173 + 488521174.

It is an arithmetic number, because the mean of its divisors is an integer number (488521174).

Almost surely, 2^977042347 is an apocalyptic number.

977042347 is a deficient number, since it is larger than the sum of its proper divisors (1).

977042347 is an equidigital number, since it uses as much as digits as its factorization.

977042347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 43.

The square root of 977042347 is about 31257.6766091148. The cubic root of 977042347 is about 992.2881289271.

The spelling of 977042347 in words is "nine hundred seventy-seven million, forty-two thousand, three hundred forty-seven".