632231761 has 12 divisors (see below), whose sum is σ = 736637220. Its totient is φ = 541040640.

The previous prime is 632231737. The next prime is 632231777. The reversal of 632231761 is 167132236.

It can be written as a sum of positive squares in 2 ways, for example, as 569108736 + 63123025 = 23856^2 + 7945^2 .

It is not a de Polignac number, because 632231761 - 2¹⁹ = 631707473 is a prime.

It is a super-2 number, since 2×632231761² = 799433999234322242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (632231711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21345 + ... + 41473.

It is an arithmetic number, because the mean of its divisors is an integer number (61386435).

Almost surely, 2^632231761 is an apocalyptic number.

It is an amenable number.

632231761 is a deficient number, since it is larger than the sum of its proper divisors (104405459).

632231761 is a wasteful number, since it uses less digits than its factorization.

632231761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20784 (or 20777 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 632231761 is about 25144.2192362380. The cubic root of 632231761 is about 858.2729723182.

Adding to 632231761 its reverse (167132236), we get a palindrome (799363997).

It can be divided in two parts, 6322 and 31761, that added together give a palindrome (38083).

The spelling of 632231761 in words is "six hundred thirty-two million, two hundred thirty-one thousand, seven hundred sixty-one".