977540429 has 2 divisors, whose sum is σ = 977540430. Its totient is φ = 977540428.

The previous prime is 977540419. The next prime is 977540441. The reversal of 977540429 is 924045779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 752240329 + 225300100 = 27427^2 + 15010^2 .

It is a cyclic number.

It is not a de Polignac number, because 977540429 - 2⁴ = 977540413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977540419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488770214 + 488770215.

It is an arithmetic number, because the mean of its divisors is an integer number (488770215).

Almost surely, 2^977540429 is an apocalyptic number.

It is an amenable number.

977540429 is a deficient number, since it is larger than the sum of its proper divisors (1).

977540429 is an equidigital number, since it uses as much as digits as its factorization.

977540429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 977540429 is about 31265.6429487705. The cubic root of 977540429 is about 992.4567183083.

The spelling of 977540429 in words is "nine hundred seventy-seven million, five hundred forty thousand, four hundred twenty-nine".