631946 has 8 divisors (see below), whose sum is σ = 1083360. Its totient is φ = 270828.

The previous prime is 631937. The next prime is 631979. The reversal of 631946 is 649136.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22556 + ... + 22583.

It is an arithmetic number, because the mean of its divisors is an integer number (135420).

2⁶³¹⁹⁴⁶ is an apocalyptic number.

631946 is a deficient number, since it is larger than the sum of its proper divisors (451414).

631946 is a wasteful number, since it uses less digits than its factorization.

631946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45148.

The product of its digits is 3888, while the sum is 29.

The square root of 631946 is about 794.9503129127. The cubic root of 631946 is about 85.8143643213.

The spelling of 631946 in words is "six hundred thirty-one thousand, nine hundred forty-six".