616444627 has 2 divisors, whose sum is σ = 616444628. Its totient is φ = 616444626.

The previous prime is 616444573. The next prime is 616444639. The reversal of 616444627 is 726444616.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616444627 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 616444627.

It is not a weakly prime, because it can be changed into another prime (616444427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308222313 + 308222314.

It is an arithmetic number, because the mean of its divisors is an integer number (308222314).

Almost surely, 2^616444627 is an apocalyptic number.

616444627 is a deficient number, since it is larger than the sum of its proper divisors (1).

616444627 is an equidigital number, since it uses as much as digits as its factorization.

616444627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 40.

The square root of 616444627 is about 24828.3029424083. The cubic root of 616444627 is about 851.0688408793.

The spelling of 616444627 in words is "six hundred sixteen million, four hundred forty-four thousand, six hundred twenty-seven".