631660834 has 16 divisors (see below), whose sum is σ = 1083575808. Its totient is φ = 270529632.

The previous prime is 631660829. The next prime is 631660849. The reversal of 631660834 is 438066136.

It is a junction number, because it is equal to n+sod(n) for n = 631660793 and 631660802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7542 + ... + 36334.

It is an arithmetic number, because the mean of its divisors is an integer number (67723488).

Almost surely, 2^631660834 is an apocalyptic number.

631660834 is a deficient number, since it is larger than the sum of its proper divisors (451914974).

631660834 is a wasteful number, since it uses less digits than its factorization.

631660834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30369.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 631660834 is about 25132.8636251423. The cubic root of 631660834 is about 858.0145445197.

The spelling of 631660834 in words is "six hundred thirty-one million, six hundred sixty thousand, eight hundred thirty-four".