680173704 has 288 divisors, whose sum is σ = 2303028000. Its totient is φ = 180278784.

The previous prime is 680173679. The next prime is 680173721. The reversal of 680173704 is 407371086.

It is a super-2 number, since 2×680173704² = 925272535226159232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4893267 + ... + 4893405.

It is an arithmetic number, because the mean of its divisors is an integer number (7996625).

Almost surely, 2^680173704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680173704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151514000).

680173704 is an abundant number, since it is smaller than the sum of its proper divisors (1622854296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680173704 is a wasteful number, since it uses less digits than its factorization.

680173704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 680173704 is about 26080.1400302989. The cubic root of 680173704 is about 879.4408052040.

The spelling of 680173704 in words is "six hundred eighty million, one hundred seventy-three thousand, seven hundred four".