654472731 has 16 divisors (see below), whose sum is σ = 955075968. Its totient is φ = 395352000.

The previous prime is 654472723. The next prime is 654472747. The reversal of 654472731 is 137274456.

It is not a de Polignac number, because 654472731 - 2³ = 654472723 is a prime.

It is a super-2 number, since 2×654472731² = 856669111245196722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 654472731.

It is not an unprimeable number, because it can be changed into a prime (654472531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22170 + ... + 42431.

It is an arithmetic number, because the mean of its divisors is an integer number (59692248).

Almost surely, 2^654472731 is an apocalyptic number.

654472731 is a deficient number, since it is larger than the sum of its proper divisors (300603237).

654472731 is a wasteful number, since it uses less digits than its factorization.

654472731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64922.

The product of its digits is 141120, while the sum is 39.

The square root of 654472731 is about 25582.6646579280. The cubic root of 654472731 is about 868.2214650588.

The spelling of 654472731 in words is "six hundred fifty-four million, four hundred seventy-two thousand, seven hundred thirty-one".