654494911 has 12 divisors (see below), whose sum is σ = 762571992. Its totient is φ = 560096208.

The previous prime is 654494899. The next prime is 654494947. The reversal of 654494911 is 119494456.

It is not a de Polignac number, because 654494911 - 2¹⁷ = 654363839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654495911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21121 + ... + 41893.

It is an arithmetic number, because the mean of its divisors is an integer number (63547666).

Almost surely, 2^654494911 is an apocalyptic number.

654494911 is a deficient number, since it is larger than the sum of its proper divisors (108077081).

654494911 is a wasteful number, since it uses less digits than its factorization.

654494911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21430 (or 21423 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 654494911 is about 25583.0981509277. The cubic root of 654494911 is about 868.2312729207.

The spelling of 654494911 in words is "six hundred fifty-four million, four hundred ninety-four thousand, nine hundred eleven".