680953830 has 64 divisors (see below), whose sum is σ = 1699342848. Its totient is φ = 174493440.

The previous prime is 680953783. The next prime is 680953877. The reversal of 680953830 is 38359086.

680953830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (680953783) and next prime (680953877).

It is a Curzon number.

It is a congruent number.

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, 78279 + ... + 86541.

It is an arithmetic number, because the mean of its divisors is an integer number (26552232).

Almost surely, 2^680953830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680953830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849671424).

680953830 is an abundant number, since it is smaller than the sum of its proper divisors (1018389018).

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

680953830 is a wasteful number, since it uses less digits than its factorization.

680953830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8381.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 680953830 is about 26095.0920672835. The cubic root of 680953830 is about 879.7769019504.

The spelling of 680953830 in words is "six hundred eighty million, nine hundred fifty-three thousand, eight hundred thirty".