631274616 has 96 divisors (see below), whose sum is σ = 1968220800. Its totient is φ = 179046720.

The previous prime is 631274599. The next prime is 631274627. The reversal of 631274616 is 616472136.

It is a happy number.

631274616 is a `hidden beast` number, since 6 + 31 + 2 + 7 + 4 + 616 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65551 + ... + 74561.

It is an arithmetic number, because the mean of its divisors is an integer number (20502300).

Almost surely, 2^631274616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631274616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984110400).

631274616 is an abundant number, since it is smaller than the sum of its proper divisors (1336946184).

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

631274616 is a wasteful number, since it uses less digits than its factorization.

631274616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9169 (or 9162 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 631274616 is about 25125.1789247360. The cubic root of 631274616 is about 857.8396361905.

The spelling of 631274616 in words is "six hundred thirty-one million, two hundred seventy-four thousand, six hundred sixteen".