632815867 has 2 divisors, whose sum is σ = 632815868. Its totient is φ = 632815866.

The previous prime is 632815861. The next prime is 632815877. The reversal of 632815867 is 768518236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 632815867 - 2⁷ = 632815739 is a prime.

It is not a weakly prime, because it can be changed into another prime (632815861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316407933 + 316407934.

It is an arithmetic number, because the mean of its divisors is an integer number (316407934).

Almost surely, 2^632815867 is an apocalyptic number.

632815867 is a deficient number, since it is larger than the sum of its proper divisors (1).

632815867 is an equidigital number, since it uses as much as digits as its factorization.

632815867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 46.

The square root of 632815867 is about 25155.8316698137. The cubic root of 632815867 is about 858.5372045801.

The spelling of 632815867 in words is "six hundred thirty-two million, eight hundred fifteen thousand, eight hundred sixty-seven".