977674289 has 2 divisors, whose sum is σ = 977674290. Its totient is φ = 977674288.

The previous prime is 977674207. The next prime is 977674297. The reversal of 977674289 is 982476779.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 548355889 + 429318400 = 23417^2 + 20720^2 .

It is a cyclic number.

It is not a de Polignac number, because 977674289 - 2²⁴ = 960897073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (977677289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488837144 + 488837145.

It is an arithmetic number, because the mean of its divisors is an integer number (488837145).

Almost surely, 2^977674289 is an apocalyptic number.

It is an amenable number.

977674289 is a deficient number, since it is larger than the sum of its proper divisors (1).

977674289 is an equidigital number, since it uses as much as digits as its factorization.

977674289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10668672, while the sum is 59.

The square root of 977674289 is about 31267.7835639177. The cubic root of 977674289 is about 992.5020170973.

The spelling of 977674289 in words is "nine hundred seventy-seven million, six hundred seventy-four thousand, two hundred eighty-nine".