631793 has 4 divisors (see below), whose sum is σ = 633840. Its totient is φ = 629748.

The previous prime is 631789. The next prime is 631817. The reversal of 631793 is 397136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 631793 - 2² = 631789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455 + ... + 1212.

It is an arithmetic number, because the mean of its divisors is an integer number (158460).

2⁶³¹⁷⁹³ is an apocalyptic number.

It is an amenable number.

631793 is a deficient number, since it is larger than the sum of its proper divisors (2047).

631793 is a wasteful number, since it uses less digits than its factorization.

631793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046.

The product of its digits is 3402, while the sum is 29.

The square root of 631793 is about 794.8540746577. The cubic root of 631793 is about 85.8074382773.

The spelling of 631793 in words is "six hundred thirty-one thousand, seven hundred ninety-three".