977038693 has 2 divisors, whose sum is σ = 977038694. Its totient is φ = 977038692.

The previous prime is 977038669. The next prime is 977038709. The reversal of 977038693 is 396830779.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 931043169 + 45995524 = 30513^2 + 6782^2 .

It is a cyclic number.

It is not a de Polignac number, because 977038693 - 2⁵ = 977038661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 977038693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977038633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488519346 + 488519347.

It is an arithmetic number, because the mean of its divisors is an integer number (488519347).

Almost surely, 2^977038693 is an apocalyptic number.

It is an amenable number.

977038693 is a deficient number, since it is larger than the sum of its proper divisors (1).

977038693 is an equidigital number, since it uses as much as digits as its factorization.

977038693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 977038693 is about 31257.6181594184. The cubic root of 977038693 is about 992.2868919199.

The spelling of 977038693 in words is "nine hundred seventy-seven million, thirty-eight thousand, six hundred ninety-three".