680199843 has 32 divisors (see below), whose sum is σ = 966493440. Its totient is φ = 424771200.

The previous prime is 680199833. The next prime is 680199847. The reversal of 680199843 is 348991086.

It is not a de Polignac number, because 680199843 - 2¹³ = 680191651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680199792 and 680199801.

It is not an unprimeable number, because it can be changed into a prime (680199847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 646668 + ... + 647718.

It is an arithmetic number, because the mean of its divisors is an integer number (30202920).

Almost surely, 2^680199843 is an apocalyptic number.

680199843 is a deficient number, since it is larger than the sum of its proper divisors (286293597).

680199843 is a wasteful number, since it uses less digits than its factorization.

680199843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 680199843 is about 26080.6411539287. The cubic root of 680199843 is about 879.4520706639.

The spelling of 680199843 in words is "six hundred eighty million, one hundred ninety-nine thousand, eight hundred forty-three".