631473 has 4 divisors (see below), whose sum is σ = 841968. Its totient is φ = 420980.

The previous prime is 631471. The next prime is 631483. The reversal of 631473 is 374136.

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 631473 - 2¹ = 631471 is a prime.

It is a D-number.

631473 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 631473.

It is not an unprimeable number, because it can be changed into a prime (631471) 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, 105243 + ... + 105248.

It is an arithmetic number, because the mean of its divisors is an integer number (210492).

2⁶³¹⁴⁷³ is an apocalyptic number.

It is an amenable number.

631473 is a deficient number, since it is larger than the sum of its proper divisors (210495).

631473 is a wasteful number, since it uses less digits than its factorization.

631473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210494.

The product of its digits is 1512, while the sum is 24.

The square root of 631473 is about 794.6527543525. The cubic root of 631473 is about 85.7929488177.

The spelling of 631473 in words is "six hundred thirty-one thousand, four hundred seventy-three".