877238497 has 2 divisors, whose sum is σ = 877238498. Its totient is φ = 877238496.

The previous prime is 877238489. The next prime is 877238567. The reversal of 877238497 is 794832778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 733813921 + 143424576 = 27089^2 + 11976^2 .

It is a cyclic number.

It is not a de Polignac number, because 877238497 - 2³ = 877238489 is a prime.

It is not a weakly prime, because it can be changed into another prime (877238407) 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, 438619248 + 438619249.

It is an arithmetic number, because the mean of its divisors is an integer number (438619249).

Almost surely, 2^877238497 is an apocalyptic number.

It is an amenable number.

877238497 is a deficient number, since it is larger than the sum of its proper divisors (1).

877238497 is an equidigital number, since it uses as much as digits as its factorization.

877238497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4741632, while the sum is 55.

The square root of 877238497 is about 29618.2122519236. The cubic root of 877238497 is about 957.2805331569.

The spelling of 877238497 in words is "eight hundred seventy-seven million, two hundred thirty-eight thousand, four hundred ninety-seven".