616037489 has 2 divisors, whose sum is σ = 616037490. Its totient is φ = 616037488.

The previous prime is 616037447. The next prime is 616037501. The reversal of 616037489 is 984730616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 615436864 + 600625 = 24808^2 + 775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616037489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (616037419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308018744 + 308018745.

It is an arithmetic number, because the mean of its divisors is an integer number (308018745).

Almost surely, 2^616037489 is an apocalyptic number.

It is an amenable number.

616037489 is a deficient number, since it is larger than the sum of its proper divisors (1).

616037489 is an equidigital number, since it uses as much as digits as its factorization.

616037489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 616037489 is about 24820.1025179188. The cubic root of 616037489 is about 850.8814335208.

The spelling of 616037489 in words is "six hundred sixteen million, thirty-seven thousand, four hundred eighty-nine".