616923387 has 36 divisors (see below), whose sum is σ = 955445400. Its totient is φ = 383480832.

The previous prime is 616923371. The next prime is 616923397. The reversal of 616923387 is 783329616.

616923387 is a `hidden beast` number, since 616 + 9 + 23 + 3 + 8 + 7 = 666.

It is not a de Polignac number, because 616923387 - 2⁴ = 616923371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616923397) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 292864 + ... + 294962.

It is an arithmetic number, because the mean of its divisors is an integer number (26540150).

Almost surely, 2^616923387 is an apocalyptic number.

616923387 is a deficient number, since it is larger than the sum of its proper divisors (338522013).

616923387 is a wasteful number, since it uses less digits than its factorization.

616923387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252 (or 2232 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 616923387 is about 24837.9424872512. The cubic root of 616923387 is about 851.2891106122.

The spelling of 616923387 in words is "six hundred sixteen million, nine hundred twenty-three thousand, three hundred eighty-seven".