616988858 has 8 divisors (see below), whose sum is σ = 925760928. Its totient is φ = 308401884.

The previous prime is 616988839. The next prime is 616988861. The reversal of 616988858 is 858889616.

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

It is a super-2 number, since 2×616988858² = 761350501792288328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 616988797 and 616988806.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37616 + ... + 51467.

It is an arithmetic number, because the mean of its divisors is an integer number (115720116).

Almost surely, 2^616988858 is an apocalyptic number.

616988858 is a deficient number, since it is larger than the sum of its proper divisors (308772070).

616988858 is a wasteful number, since it uses less digits than its factorization.

616988858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92548.

The product of its digits is 6635520, while the sum is 59.

The square root of 616988858 is about 24839.2604157209. The cubic root of 616988858 is about 851.3192239018.

The spelling of 616988858 in words is "six hundred sixteen million, nine hundred eighty-eight thousand, eight hundred fifty-eight".