616969447 has 2 divisors, whose sum is σ = 616969448. Its totient is φ = 616969446.

The previous prime is 616969439. The next prime is 616969453. The reversal of 616969447 is 744969616.

616969447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616969447 - 2³ = 616969439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616969394 and 616969403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616969427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308484723 + 308484724.

It is an arithmetic number, because the mean of its divisors is an integer number (308484724).

Almost surely, 2^616969447 is an apocalyptic number.

616969447 is a deficient number, since it is larger than the sum of its proper divisors (1).

616969447 is an equidigital number, since it uses as much as digits as its factorization.

616969447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 52.

The square root of 616969447 is about 24838.8696804021. The cubic root of 616969447 is about 851.3102960633.

The spelling of 616969447 in words is "six hundred sixteen million, nine hundred sixty-nine thousand, four hundred forty-seven".