654916605 has 96 divisors (see below), whose sum is σ = 1339545600. Its totient is φ = 271168128.

The previous prime is 654916589. The next prime is 654916609. The reversal of 654916605 is 506619456.

It is not a de Polignac number, because 654916605 - 2⁴ = 654916589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654916609) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 320176 + ... + 322214.

It is an arithmetic number, because the mean of its divisors is an integer number (13953600).

Almost surely, 2^654916605 is an apocalyptic number.

It is an amenable number.

654916605 is an abundant number, since it is smaller than the sum of its proper divisors (684628995).

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

654916605 is a wasteful number, since it uses less digits than its factorization.

654916605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2096 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 654916605 is about 25591.3384761329. The cubic root of 654916605 is about 868.4177013190.

The spelling of 654916605 in words is "six hundred fifty-four million, nine hundred sixteen thousand, six hundred five".