977031049 has 2 divisors, whose sum is σ = 977031050. Its totient is φ = 977031048.

The previous prime is 977031047. The next prime is 977031059. The reversal of 977031049 is 940130779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 635040000 + 341991049 = 25200^2 + 18493^2 .

It is a cyclic number.

It is not a de Polignac number, because 977031049 - 2¹ = 977031047 is a prime.

Together with 977031047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (977031047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488515524 + 488515525.

It is an arithmetic number, because the mean of its divisors is an integer number (488515525).

Almost surely, 2^977031049 is an apocalyptic number.

It is an amenable number.

977031049 is a deficient number, since it is larger than the sum of its proper divisors (1).

977031049 is an equidigital number, since it uses as much as digits as its factorization.

977031049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 977031049 is about 31257.4958849873. The cubic root of 977031049 is about 992.2843041477.

The spelling of 977031049 in words is "nine hundred seventy-seven million, thirty-one thousand, forty-nine".