631263883 has 4 divisors (see below), whose sum is σ = 640685800. Its totient is φ = 621841968.

The previous prime is 631263869. The next prime is 631263889. The reversal of 631263883 is 388362136.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 631263883 - 2⁹ = 631263371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631263889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4710858 + ... + 4710991.

It is an arithmetic number, because the mean of its divisors is an integer number (160171450).

Almost surely, 2^631263883 is an apocalyptic number.

631263883 is a deficient number, since it is larger than the sum of its proper divisors (9421917).

631263883 is an equidigital number, since it uses as much as digits as its factorization.

631263883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9421916.

The product of its digits is 124416, while the sum is 40.

The square root of 631263883 is about 25124.9653333094. The cubic root of 631263883 is about 857.8347744686.

The spelling of 631263883 in words is "six hundred thirty-one million, two hundred sixty-three thousand, eight hundred eighty-three".