680997494 has 8 divisors (see below), whose sum is σ = 1035883728. Its totient is φ = 335702920.

The previous prime is 680997463. The next prime is 680997539. The reversal of 680997494 is 494799086.

680997494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2397737 + ... + 2398020.

It is an arithmetic number, because the mean of its divisors is an integer number (129485466).

Almost surely, 2^680997494 is an apocalyptic number.

680997494 is a deficient number, since it is larger than the sum of its proper divisors (354886234).

680997494 is a wasteful number, since it uses less digits than its factorization.

680997494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795830.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 680997494 is about 26095.9286862913. The cubic root of 680997494 is about 879.7957058476.

The spelling of 680997494 in words is "six hundred eighty million, nine hundred ninety-seven thousand, four hundred ninety-four".