631085934 has 32 divisors (see below), whose sum is σ = 1338978816. Its totient is φ = 197608320.

The previous prime is 631085933. The next prime is 631085971. The reversal of 631085934 is 439580136.

It is a junction number, because it is equal to n+sod(n) for n = 631085892 and 631085901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631085933) 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, 50139 + ... + 61449.

It is an arithmetic number, because the mean of its divisors is an integer number (41843088).

Almost surely, 2^631085934 is an apocalyptic number.

631085934 is an abundant number, since it is smaller than the sum of its proper divisors (707892882).

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

631085934 is a wasteful number, since it uses less digits than its factorization.

631085934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11880.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 631085934 is about 25121.4238051907. The cubic root of 631085934 is about 857.7541609616.

The spelling of 631085934 in words is "six hundred thirty-one million, eighty-five thousand, nine hundred thirty-four".