654494899 has 2 divisors, whose sum is σ = 654494900. Its totient is φ = 654494898.

The previous prime is 654494891. The next prime is 654494947. The reversal of 654494899 is 998494456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654494899 - 2³ = 654494891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (654494891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327247449 + 327247450.

It is an arithmetic number, because the mean of its divisors is an integer number (327247450).

Almost surely, 2^654494899 is an apocalyptic number.

654494899 is a deficient number, since it is larger than the sum of its proper divisors (1).

654494899 is an equidigital number, since it uses as much as digits as its factorization.

654494899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11197440, while the sum is 58.

The square root of 654494899 is about 25583.0979163978. The cubic root of 654494899 is about 868.2312676144.

The spelling of 654494899 in words is "six hundred fifty-four million, four hundred ninety-four thousand, eight hundred ninety-nine".