632631961 has 8 divisors (see below), whose sum is σ = 717153920. Its totient is φ = 553232592.

The previous prime is 632631959. The next prime is 632631977. The reversal of 632631961 is 169136236.

632631961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 632631961 - 2¹ = 632631959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 632631961.

It is not an unprimeable number, because it can be changed into a prime (632631361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280385 + ... + 1280878.

It is an arithmetic number, because the mean of its divisors is an integer number (89644240).

Almost surely, 2^632631961 is an apocalyptic number.

It is an amenable number.

632631961 is a deficient number, since it is larger than the sum of its proper divisors (84521959).

632631961 is a wasteful number, since it uses less digits than its factorization.

632631961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561295.

The product of its digits is 34992, while the sum is 37.

The square root of 632631961 is about 25152.1760688812. The cubic root of 632631961 is about 858.4540284942.

The spelling of 632631961 in words is "six hundred thirty-two million, six hundred thirty-one thousand, nine hundred sixty-one".