678510676 has 6 divisors (see below), whose sum is σ = 1187393690. Its totient is φ = 339255336.

The previous prime is 678510667. The next prime is 678510683. The reversal of 678510676 is 676015876.

It can be written as a sum of positive squares in only one way, i.e., 621205776 + 57304900 = 24924^2 + 7570^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84813831 + ... + 84813838.

Almost surely, 2^678510676 is an apocalyptic number.

It is an amenable number.

678510676 is a deficient number, since it is larger than the sum of its proper divisors (508883014).

678510676 is a wasteful number, since it uses less digits than its factorization.

678510676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169627673 (or 169627671 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 678510676 is about 26048.2374835611. The cubic root of 678510676 is about 878.7234745846.

The spelling of 678510676 in words is "six hundred seventy-eight million, five hundred ten thousand, six hundred seventy-six".