631607063 has 4 divisors (see below), whose sum is σ = 664849560. Its totient is φ = 598364568.

The previous prime is 631607047. The next prime is 631607077. The reversal of 631607063 is 360706136.

It is a happy number.

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

It is not a de Polignac number, because 631607063 - 2⁴ = 631607047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631607003) 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, 16621220 + ... + 16621257.

It is an arithmetic number, because the mean of its divisors is an integer number (166212390).

Almost surely, 2^631607063 is an apocalyptic number.

631607063 is a deficient number, since it is larger than the sum of its proper divisors (33242497).

631607063 is a wasteful number, since it uses less digits than its factorization.

631607063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33242496.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 631607063 is about 25131.7938675296. The cubic root of 631607063 is about 857.9901972716.

The spelling of 631607063 in words is "six hundred thirty-one million, six hundred seven thousand, sixty-three".