654099983 has 2 divisors, whose sum is σ = 654099984. Its totient is φ = 654099982.

The previous prime is 654099923. The next prime is 654099991. The reversal of 654099983 is 389990456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654099983 - 2²⁰ = 653051407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654099923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327049991 + 327049992.

It is an arithmetic number, because the mean of its divisors is an integer number (327049992).

Almost surely, 2^654099983 is an apocalyptic number.

654099983 is a deficient number, since it is larger than the sum of its proper divisors (1).

654099983 is an equidigital number, since it uses as much as digits as its factorization.

654099983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 654099983 is about 25575.3784527228. The cubic root of 654099983 is about 868.0566049822.

The spelling of 654099983 in words is "six hundred fifty-four million, ninety-nine thousand, nine hundred eighty-three".