631215376 has 45 divisors (see below), whose sum is σ = 1346625399. Its totient is φ = 286413600.

The previous prime is 631215353. The next prime is 631215419. The reversal of 631215376 is 673512136.

The square root of 631215376 is 25124.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1105171 + ... + 1105741.

Almost surely, 2^631215376 is an apocalyptic number.

631215376 is the 25124-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631215376

631215376 is an abundant number, since it is smaller than the sum of its proper divisors (715410023).

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

631215376 is an equidigital number, since it uses as much as digits as its factorization.

631215376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172 (or 584 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The cubic root of 631215376 is about 857.8128015883.

The spelling of 631215376 in words is "six hundred thirty-one million, two hundred fifteen thousand, three hundred seventy-six".