654990611 has 16 divisors (see below), whose sum is σ = 728474208. Its totient is φ = 583891200.

The previous prime is 654990547. The next prime is 654990641. The reversal of 654990611 is 116099456.

It is a cyclic number.

It is not a de Polignac number, because 654990611 - 2⁶ = 654990547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (654990641) 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, 248975 + ... + 251591.

It is an arithmetic number, because the mean of its divisors is an integer number (45529638).

Almost surely, 2^654990611 is an apocalyptic number.

654990611 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

654990611 is a deficient number, since it is larger than the sum of its proper divisors (73483597).

654990611 is a wasteful number, since it uses less digits than its factorization.

654990611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 654990611 is about 25592.7843541886. The cubic root of 654990611 is about 868.4504106743.

The spelling of 654990611 in words is "six hundred fifty-four million, nine hundred ninety thousand, six hundred eleven".