680597970 has 64 divisors (see below), whose sum is σ = 1762750080. Its totient is φ = 167182848.

The previous prime is 680597933. The next prime is 680597987. The reversal of 680597970 is 79795086.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220377 + ... + 223443.

It is an arithmetic number, because the mean of its divisors is an integer number (27542970).

Almost surely, 2^680597970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680597970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881375040).

680597970 is an abundant number, since it is smaller than the sum of its proper divisors (1082152110).

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

680597970 is a wasteful number, since it uses less digits than its factorization.

680597970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 680597970 is about 26088.2726526691. The cubic root of 680597970 is about 879.6236208969.

The spelling of 680597970 in words is "six hundred eighty million, five hundred ninety-seven thousand, nine hundred seventy".