616517379 has 8 divisors (see below), whose sum is σ = 913359120. Its totient is φ = 411011568.

The previous prime is 616517371. The next prime is 616517383. The reversal of 616517379 is 973715616.

616517379 is a `hidden beast` number, since 61 + 6 + 517 + 3 + 79 = 666.

It is not a de Polignac number, because 616517379 - 2³ = 616517371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616517371) 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, 11416962 + ... + 11417015.

It is an arithmetic number, because the mean of its divisors is an integer number (114169890).

Almost surely, 2^616517379 is an apocalyptic number.

616517379 is a deficient number, since it is larger than the sum of its proper divisors (296841741).

616517379 is a wasteful number, since it uses less digits than its factorization.

616517379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22833986 (or 22833980 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 616517379 is about 24829.7680013326. The cubic root of 616517379 is about 851.1023202446.

The spelling of 616517379 in words is "six hundred sixteen million, five hundred seventeen thousand, three hundred seventy-nine".