680938029 has 32 divisors (see below), whose sum is σ = 1019652480. Its totient is φ = 449107200.

The previous prime is 680937997. The next prime is 680938079. The reversal of 680938029 is 920839086.

It is not a de Polignac number, because 680938029 - 2⁵ = 680937997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680938079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1476859 + ... + 1477319.

It is an arithmetic number, because the mean of its divisors is an integer number (31864140).

Almost surely, 2^680938029 is an apocalyptic number.

It is an amenable number.

680938029 is a deficient number, since it is larger than the sum of its proper divisors (338714451).

680938029 is a wasteful number, since it uses less digits than its factorization.

680938029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 680938029 is about 26094.7893074460. The cubic root of 680938029 is about 879.7700970532.

The spelling of 680938029 in words is "six hundred eighty million, nine hundred thirty-eight thousand, twenty-nine".