631488946 has 16 divisors (see below), whose sum is σ = 1040194368. Its totient is φ = 285138000.

The previous prime is 631488931. The next prime is 631488961. The reversal of 631488946 is 649884136.

It is an interprime number because it is at equal distance from previous prime (631488931) and next prime (631488961).

It is a self number, because there is not a number n which added to its sum of digits gives 631488946.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91725 + ... + 98368.

It is an arithmetic number, because the mean of its divisors is an integer number (65012148).

Almost surely, 2^631488946 is an apocalyptic number.

631488946 is a deficient number, since it is larger than the sum of its proper divisors (408705422).

631488946 is a wasteful number, since it uses less digits than its factorization.

631488946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190257.

The product of its digits is 995328, while the sum is 49.

The square root of 631488946 is about 25129.4438060217. The cubic root of 631488946 is about 857.9367096144.

The spelling of 631488946 in words is "six hundred thirty-one million, four hundred eighty-eight thousand, nine hundred forty-six".