680835494 has 16 divisors (see below), whose sum is σ = 1057129920. Its totient is φ = 328473600.

The previous prime is 680835487. The next prime is 680835559. The reversal of 680835494 is 494538086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133862 + ... + 138854.

It is an arithmetic number, because the mean of its divisors is an integer number (66070620).

Almost surely, 2^680835494 is an apocalyptic number.

680835494 is a deficient number, since it is larger than the sum of its proper divisors (376294426).

680835494 is a wasteful number, since it uses less digits than its factorization.

680835494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7375.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 680835494 is about 26092.8245692183. The cubic root of 680835494 is about 879.7259365221.

The spelling of 680835494 in words is "six hundred eighty million, eight hundred thirty-five thousand, four hundred ninety-four".