678174874 has 16 divisors (see below), whose sum is σ = 1095949512. Its totient is φ = 312879168.

The previous prime is 678174839. The next prime is 678174883. The reversal of 678174874 is 478471876.

It can be written as a sum of positive squares in 4 ways, for example, as 514155625 + 164019249 = 22675^2 + 12807^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107512 + ... + 113644.

Almost surely, 2^678174874 is an apocalyptic number.

678174874 is a deficient number, since it is larger than the sum of its proper divisors (417774638).

678174874 is a wasteful number, since it uses less digits than its factorization.

678174874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401.

The product of its digits is 2107392, while the sum is 52.

The square root of 678174874 is about 26041.7909138369. The cubic root of 678174874 is about 878.5784875304.

The spelling of 678174874 in words is "six hundred seventy-eight million, one hundred seventy-four thousand, eight hundred seventy-four".