631944674 has 8 divisors (see below), whose sum is σ = 997807440. Its totient is φ = 299342196.

The previous prime is 631944671. The next prime is 631944679. The reversal of 631944674 is 476449136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (631944671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8315024 + ... + 8315099.

It is an arithmetic number, because the mean of its divisors is an integer number (124725930).

Almost surely, 2^631944674 is an apocalyptic number.

631944674 is a deficient number, since it is larger than the sum of its proper divisors (365862766).

631944674 is a wasteful number, since it uses less digits than its factorization.

631944674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16630144.

The product of its digits is 435456, while the sum is 44.

The square root of 631944674 is about 25138.5097808124. The cubic root of 631944674 is about 858.1430430039.

The spelling of 631944674 in words is "six hundred thirty-one million, nine hundred forty-four thousand, six hundred seventy-four".