654524643 has 16 divisors (see below), whose sum is σ = 886086656. Its totient is φ = 429675840.

The previous prime is 654524641. The next prime is 654524657. The reversal of 654524643 is 346425456.

It is not a de Polignac number, because 654524643 - 2¹ = 654524641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654524641) 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, 157158 + ... + 161268.

It is an arithmetic number, because the mean of its divisors is an integer number (55380416).

Almost surely, 2^654524643 is an apocalyptic number.

654524643 is a deficient number, since it is larger than the sum of its proper divisors (231562013).

654524643 is a wasteful number, since it uses less digits than its factorization.

654524643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4914.

The product of its digits is 345600, while the sum is 39.

The square root of 654524643 is about 25583.6792311036. The cubic root of 654524643 is about 868.2444198838.

The spelling of 654524643 in words is "six hundred fifty-four million, five hundred twenty-four thousand, six hundred forty-three".