616369903 has 2 divisors, whose sum is σ = 616369904. Its totient is φ = 616369902.

The previous prime is 616369877. The next prime is 616369909. The reversal of 616369903 is 309963616.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616369903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 616369903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616369909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308184951 + 308184952.

It is an arithmetic number, because the mean of its divisors is an integer number (308184952).

Almost surely, 2^616369903 is an apocalyptic number.

616369903 is a deficient number, since it is larger than the sum of its proper divisors (1).

616369903 is an equidigital number, since it uses as much as digits as its factorization.

616369903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 616369903 is about 24826.7980819114. The cubic root of 616369903 is about 851.0344512872.

The spelling of 616369903 in words is "six hundred sixteen million, three hundred sixty-nine thousand, nine hundred three".