654105972 has 24 divisors (see below), whose sum is σ = 1643651296. Its totient is φ = 201263328.

The previous prime is 654105967. The next prime is 654105973. The reversal of 654105972 is 279501456.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 654105972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654105973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2096338 + ... + 2096649.

Almost surely, 2^654105972 is an apocalyptic number.

It is an amenable number.

654105972 is an abundant number, since it is smaller than the sum of its proper divisors (989545324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654105972 is a wasteful number, since it uses less digits than its factorization.

654105972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193007 (or 4193005 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 654105972 is about 25575.4955377213. The cubic root of 654105972 is about 868.0592543096.

The spelling of 654105972 in words is "six hundred fifty-four million, one hundred five thousand, nine hundred seventy-two".