631056996 has 36 divisors (see below), whose sum is σ = 1602345472. Its totient is φ = 209406384.

The previous prime is 631056973. The next prime is 631056997. The reversal of 631056996 is 699650136.

631056996 is a `hidden beast` number, since 631 + 0 + 5 + 6 + 9 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (631056997) 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, 31276 + ... + 47331.

Almost surely, 2^631056996 is an apocalyptic number.

It is an amenable number.

631056996 is an abundant number, since it is smaller than the sum of its proper divisors (971288476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631056996 is a wasteful number, since it uses less digits than its factorization.

631056996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78840 (or 78835 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 631056996 is about 25120.8478360106. The cubic root of 631056996 is about 857.7410501907.

The spelling of 631056996 in words is "six hundred thirty-one million, fifty-six thousand, nine hundred ninety-six".