977250487 has 2 divisors, whose sum is σ = 977250488. Its totient is φ = 977250486.

The previous prime is 977250451. The next prime is 977250569. The reversal of 977250487 is 784052779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 977250487 - 2⁷ = 977250359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 977250487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977250587) 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, 488625243 + 488625244.

It is an arithmetic number, because the mean of its divisors is an integer number (488625244).

Almost surely, 2^977250487 is an apocalyptic number.

977250487 is a deficient number, since it is larger than the sum of its proper divisors (1).

977250487 is an equidigital number, since it uses as much as digits as its factorization.

977250487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 49.

The square root of 977250487 is about 31261.0058539389. The cubic root of 977250487 is about 992.3585865306.

The spelling of 977250487 in words is "nine hundred seventy-seven million, two hundred fifty thousand, four hundred eighty-seven".