631942 has 8 divisors (see below), whose sum is σ = 957096. Its totient is φ = 312912.

The previous prime is 631937. The next prime is 631979. The reversal of 631942 is 249136.

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

It is a congruent number.

It is an unprimeable number.

631942 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (119637).

2⁶³¹⁹⁴² is an apocalyptic number.

631942 is a deficient number, since it is larger than the sum of its proper divisors (325154).

631942 is a wasteful number, since it uses less digits than its factorization.

631942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062.

The product of its digits is 1296, while the sum is 25.

The square root of 631942 is about 794.9477970282. The cubic root of 631942 is about 85.8141832625.

The spelling of 631942 in words is "six hundred thirty-one thousand, nine hundred forty-two".