616868847 has 24 divisors (see below), whose sum is σ = 1045849376. Its totient is φ = 342968256.

The previous prime is 616868827. The next prime is 616868849. The reversal of 616868847 is 748868616.

It is not a de Polignac number, because 616868847 - 2⁷ = 616868719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 616868793 and 616868802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616868849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129988 + ... + 134649.

Almost surely, 2^616868847 is an apocalyptic number.

616868847 is a deficient number, since it is larger than the sum of its proper divisors (428980529).

616868847 is a wasteful number, since it uses less digits than its factorization.

616868847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264687 (or 264684 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 616868847 is about 24836.8445459563. The cubic root of 616868847 is about 851.2640233932.

The spelling of 616868847 in words is "six hundred sixteen million, eight hundred sixty-eight thousand, eight hundred forty-seven".