631673455 has 12 divisors (see below), whose sum is σ = 881764920. Its totient is φ = 433147344.

The previous prime is 631673423. The next prime is 631673459. The reversal of 631673455 is 554376136.

It is not a de Polignac number, because 631673455 - 2⁵ = 631673423 is a prime.

It is a super-2 number, since 2×631673455² = 798022707503274050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631673459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1288885 + ... + 1289374.

It is an arithmetic number, because the mean of its divisors is an integer number (73480410).

Almost surely, 2^631673455 is an apocalyptic number.

631673455 is a deficient number, since it is larger than the sum of its proper divisors (250091465).

631673455 is a wasteful number, since it uses less digits than its factorization.

631673455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578278 (or 2578271 counting only the distinct ones).

The product of its digits is 226800, while the sum is 40.

The square root of 631673455 is about 25133.1147094824. The cubic root of 631673455 is about 858.0202590471.

The spelling of 631673455 in words is "six hundred thirty-one million, six hundred seventy-three thousand, four hundred fifty-five".