678576874 has 8 divisors (see below), whose sum is σ = 1018319940. Its totient is φ = 339136896.

The previous prime is 678576869. The next prime is 678576917. The reversal of 678576874 is 478675876.

It can be written as a sum of positive squares in 2 ways, for example, as 633780625 + 44796249 = 25175^2 + 6693^2 .

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

It is a super-2 number, since 2×678576874² = 920933147855223752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70089 + ... + 79180.

Almost surely, 2^678576874 is an apocalyptic number.

678576874 is a deficient number, since it is larger than the sum of its proper divisors (339743066).

678576874 is a wasteful number, since it uses less digits than its factorization.

678576874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151544.

The product of its digits is 15805440, while the sum is 58.

The square root of 678576874 is about 26049.5081335522. The cubic root of 678576874 is about 878.7520508212.

The spelling of 678576874 in words is "six hundred seventy-eight million, five hundred seventy-six thousand, eight hundred seventy-four".