631614672 has 100 divisors (see below), whose sum is σ = 1968749860. Its totient is φ = 194337792.

The previous prime is 631614667. The next prime is 631614689. The reversal of 631614672 is 276416136.

It is a happy number.

631614672 is a `hidden beast` number, since 6 + 31 + 614 + 6 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 358572096 + 273042576 = 18936^2 + 16524^2 .

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

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1897 + ... + 35592.

Almost surely, 2^631614672 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 631614672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984374930).

631614672 is an abundant number, since it is smaller than the sum of its proper divisors (1337135188).

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

631614672 is a wasteful number, since it uses less digits than its factorization.

631614672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37522 (or 37507 counting only the distinct ones).

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

The square root of 631614672 is about 25131.9452490252. The cubic root of 631614672 is about 857.9936426738.

The spelling of 631614672 in words is "six hundred thirty-one million, six hundred fourteen thousand, six hundred seventy-two".