678886059 has 8 divisors (see below), whose sum is σ = 905572672. Its totient is φ = 452395080.

The previous prime is 678886031. The next prime is 678886099. The reversal of 678886059 is 950688876.

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

It is not a de Polignac number, because 678886059 - 2²¹ = 676788907 is a prime.

It is a super-2 number, since 2×678886059² = 921772562209102962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678886099) 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, 40609 + ... + 54834.

It is an arithmetic number, because the mean of its divisors is an integer number (113196584).

Almost surely, 2^678886059 is an apocalyptic number.

678886059 is a deficient number, since it is larger than the sum of its proper divisors (226686613).

678886059 is a wasteful number, since it uses less digits than its factorization.

678886059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97817.

The product of its (nonzero) digits is 5806080, while the sum is 57.

The square root of 678886059 is about 26055.4420227330. The cubic root of 678886059 is about 878.8854946547.

The spelling of 678886059 in words is "six hundred seventy-eight million, eight hundred eighty-six thousand, fifty-nine".