654613439 has 2 divisors, whose sum is σ = 654613440. Its totient is φ = 654613438.

The previous prime is 654613429. The next prime is 654613459. The reversal of 654613439 is 934316456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654613439 - 2²⁴ = 637836223 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 654613396 and 654613405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654613409) 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, 327306719 + 327306720.

It is an arithmetic number, because the mean of its divisors is an integer number (327306720).

Almost surely, 2^654613439 is an apocalyptic number.

654613439 is a deficient number, since it is larger than the sum of its proper divisors (1).

654613439 is an equidigital number, since it uses as much as digits as its factorization.

654613439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 41.

The square root of 654613439 is about 25585.4145754959. The cubic root of 654613439 is about 868.2836815302.

The spelling of 654613439 in words is "six hundred fifty-four million, six hundred thirteen thousand, four hundred thirty-nine".