616857313 has 8 divisors (see below), whose sum is σ = 638048000. Its totient is φ = 595747440.

The previous prime is 616857299. The next prime is 616857323. The reversal of 616857313 is 313758616.

It is a happy number.

616857313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616857313 - 2²¹ = 614760161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616857323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4470 + ... + 35407.

It is an arithmetic number, because the mean of its divisors is an integer number (79756000).

Almost surely, 2^616857313 is an apocalyptic number.

It is an amenable number.

616857313 is a deficient number, since it is larger than the sum of its proper divisors (21190687).

616857313 is a wasteful number, since it uses less digits than its factorization.

616857313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40407.

The product of its digits is 90720, while the sum is 40.

The square root of 616857313 is about 24836.6123495134. The cubic root of 616857313 is about 851.2587178135.

The spelling of 616857313 in words is "six hundred sixteen million, eight hundred fifty-seven thousand, three hundred thirteen".