616256479 has 2 divisors, whose sum is σ = 616256480. Its totient is φ = 616256478.

The previous prime is 616256447. The next prime is 616256573. The reversal of 616256479 is 974652616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616256479 - 2⁵ = 616256447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616253479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308128239 + 308128240.

It is an arithmetic number, because the mean of its divisors is an integer number (308128240).

Almost surely, 2^616256479 is an apocalyptic number.

616256479 is a deficient number, since it is larger than the sum of its proper divisors (1).

616256479 is an equidigital number, since it uses as much as digits as its factorization.

616256479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 616256479 is about 24824.5136709664. The cubic root of 616256479 is about 850.9822458108.

The spelling of 616256479 in words is "six hundred sixteen million, two hundred fifty-six thousand, four hundred seventy-nine".