632868761 has 6 divisors (see below), whose sum is σ = 736194330. Its totient is φ = 542458896.

The previous prime is 632868737. The next prime is 632868787. The reversal of 632868761 is 167868236.

It can be written as a sum of positive squares in only one way, i.e., 632220736 + 648025 = 25144^2 + 805^2 .

It is not a de Polignac number, because 632868761 - 2⁶ = 632868697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (632868721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6457796 + ... + 6457893.

It is an arithmetic number, because the mean of its divisors is an integer number (122699055).

Almost surely, 2^632868761 is an apocalyptic number.

It is an amenable number.

632868761 is a deficient number, since it is larger than the sum of its proper divisors (103325569).

632868761 is a wasteful number, since it uses less digits than its factorization.

632868761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12915703 (or 12915696 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 632868761 is about 25156.8829746453. The cubic root of 632868761 is about 858.5611242299.

The spelling of 632868761 in words is "six hundred thirty-two million, eight hundred sixty-eight thousand, seven hundred sixty-one".