680324978 has 16 divisors (see below), whose sum is σ = 1057164480. Its totient is φ = 327969936.

The previous prime is 680324969. The next prime is 680324987. The reversal of 680324978 is 879423086.

It is an interprime number because it is at equal distance from previous prime (680324969) and next prime (680324987).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35201 + ... + 50987.

It is an arithmetic number, because the mean of its divisors is an integer number (66072780).

Almost surely, 2^680324978 is an apocalyptic number.

680324978 is a deficient number, since it is larger than the sum of its proper divisors (376839502).

680324978 is a wasteful number, since it uses less digits than its factorization.

680324978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16561.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 680324978 is about 26083.0400452095. The cubic root of 680324978 is about 879.5059977012.

The spelling of 680324978 in words is "six hundred eighty million, three hundred twenty-four thousand, nine hundred seventy-eight".