616683285 has 24 divisors (see below), whose sum is σ = 1125178080. Its totient is φ = 311586912.

The previous prime is 616683271. The next prime is 616683299. The reversal of 616683285 is 582386616.

616683285 is a `hidden beast` number, since 616 + 6 + 8 + 3 + 28 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (616683271) and next prime (616683299).

It is not a de Polignac number, because 616683285 - 2⁴ = 616683269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 616683285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359779 + ... + 361488.

It is an arithmetic number, because the mean of its divisors is an integer number (46882420).

Almost surely, 2^616683285 is an apocalyptic number.

It is an amenable number.

616683285 is a deficient number, since it is larger than the sum of its proper divisors (508494795).

616683285 is a wasteful number, since it uses less digits than its factorization.

616683285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721297 (or 721294 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 616683285 is about 24833.1086455160. The cubic root of 616683285 is about 851.1786578156.

The spelling of 616683285 in words is "six hundred sixteen million, six hundred eighty-three thousand, two hundred eighty-five".