654109884 has 144 divisors (see below), whose sum is σ = 1897996800. Its totient is φ = 194234112.

The previous prime is 654109873. The next prime is 654109913. The reversal of 654109884 is 488901456.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 592477 + ... + 593579.

Almost surely, 2^654109884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654109884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948998400).

654109884 is an abundant number, since it is smaller than the sum of its proper divisors (1243886916).

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

654109884 is a wasteful number, since it uses less digits than its factorization.

654109884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 654109884 is about 25575.5720170635. The cubic root of 654109884 is about 868.0609848351.

The spelling of 654109884 in words is "six hundred fifty-four million, one hundred nine thousand, eight hundred eighty-four".