680173474 has 4 divisors (see below), whose sum is σ = 1020260214. Its totient is φ = 340086736.

The previous prime is 680173471. The next prime is 680173513. The reversal of 680173474 is 474371086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 657563449 + 22610025 = 25643^2 + 4755^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (680173471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170043367 + ... + 170043370.

Almost surely, 2^680173474 is an apocalyptic number.

680173474 is a deficient number, since it is larger than the sum of its proper divisors (340086740).

680173474 is a wasteful number, since it uses less digits than its factorization.

680173474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340086739.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 680173474 is about 26080.1356208130. The cubic root of 680173474 is about 879.4407060767.

The spelling of 680173474 in words is "six hundred eighty million, one hundred seventy-three thousand, four hundred seventy-four".