616984747 has 2 divisors, whose sum is σ = 616984748. Its totient is φ = 616984746.

The previous prime is 616984741. The next prime is 616984751. The reversal of 616984747 is 747489616.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616984747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616984694 and 616984703.

It is not a weakly prime, because it can be changed into another prime (616984741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308492373 + 308492374.

It is an arithmetic number, because the mean of its divisors is an integer number (308492374).

Almost surely, 2^616984747 is an apocalyptic number.

616984747 is a deficient number, since it is larger than the sum of its proper divisors (1).

616984747 is an equidigital number, since it uses as much as digits as its factorization.

616984747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 52.

The square root of 616984747 is about 24839.1776635218. The cubic root of 616984747 is about 851.3173331162.

The spelling of 616984747 in words is "six hundred sixteen million, nine hundred eighty-four thousand, seven hundred forty-seven".