631320699 has 16 divisors (see below), whose sum is σ = 863948160. Its totient is φ = 409928640.

The previous prime is 631320689. The next prime is 631320727. The reversal of 631320699 is 996023136.

It is not a de Polignac number, because 631320699 - 2⁵ = 631320667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631320689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244 + ... + 35534.

It is an arithmetic number, because the mean of its divisors is an integer number (53996760).

Almost surely, 2^631320699 is an apocalyptic number.

631320699 is a deficient number, since it is larger than the sum of its proper divisors (232627461).

631320699 is a wasteful number, since it uses less digits than its factorization.

631320699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35450.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 631320699 is about 25126.0959760962. The cubic root of 631320699 is about 857.8605097592.

The spelling of 631320699 in words is "six hundred thirty-one million, three hundred twenty thousand, six hundred ninety-nine".