616369877 has 2 divisors, whose sum is σ = 616369878. Its totient is φ = 616369876.

The previous prime is 616369849. The next prime is 616369903. The reversal of 616369877 is 778963616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616330276 + 39601 = 24826^2 + 199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616369877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616369837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308184938 + 308184939.

It is an arithmetic number, because the mean of its divisors is an integer number (308184939).

Almost surely, 2^616369877 is an apocalyptic number.

It is an amenable number.

616369877 is a deficient number, since it is larger than the sum of its proper divisors (1).

616369877 is an equidigital number, since it uses as much as digits as its factorization.

616369877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 53.

The square root of 616369877 is about 24826.7975582837. The cubic root of 616369877 is about 851.0344393209.

The spelling of 616369877 in words is "six hundred sixteen million, three hundred sixty-nine thousand, eight hundred seventy-seven".