616013917 has 2 divisors, whose sum is σ = 616013918. Its totient is φ = 616013916.

The previous prime is 616013903. The next prime is 616013977. The reversal of 616013917 is 719310616.

616013917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 537266041 + 78747876 = 23179^2 + 8874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616013917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616013977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308006958 + 308006959.

It is an arithmetic number, because the mean of its divisors is an integer number (308006959).

Almost surely, 2^616013917 is an apocalyptic number.

It is an amenable number.

616013917 is a deficient number, since it is larger than the sum of its proper divisors (1).

616013917 is an equidigital number, since it uses as much as digits as its factorization.

616013917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 616013917 is about 24819.6276563529. The cubic root of 616013917 is about 850.8705807002.

The spelling of 616013917 in words is "six hundred sixteen million, thirteen thousand, nine hundred seventeen".