631346 has 16 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 287040.

The previous prime is 631339. The next prime is 631357. The reversal of 631346 is 643136.

It is a Curzon number.

It is a congruent number.

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, 755 + ... + 1353.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2⁶³¹³⁴⁶ is an apocalyptic number.

631346 is a deficient number, since it is larger than the sum of its proper divisors (405454).

631346 is a wasteful number, since it uses less digits than its factorization.

631346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649.

The product of its digits is 1296, while the sum is 23.

The square root of 631346 is about 794.5728412172. The cubic root of 631346 is about 85.7871969565.

The spelling of 631346 in words is "six hundred thirty-one thousand, three hundred forty-six".