977163287 has 2 divisors, whose sum is σ = 977163288. Its totient is φ = 977163286.

The previous prime is 977163241. The next prime is 977163301. The reversal of 977163287 is 782361779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 977163287 - 2¹⁸ = 976901143 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 (977163227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488581643 + 488581644.

It is an arithmetic number, because the mean of its divisors is an integer number (488581644).

Almost surely, 2^977163287 is an apocalyptic number.

977163287 is a deficient number, since it is larger than the sum of its proper divisors (1).

977163287 is an equidigital number, since it uses as much as digits as its factorization.

977163287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 50.

The square root of 977163287 is about 31259.6111140238. The cubic root of 977163287 is about 992.3290696211.

The spelling of 977163287 in words is "nine hundred seventy-seven million, one hundred sixty-three thousand, two hundred eighty-seven".