680832406 has 4 divisors (see below), whose sum is σ = 1021248612. Its totient is φ = 340416202.

The previous prime is 680832403. The next prime is 680832457. The reversal of 680832406 is 604238086.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680832401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170208100 + ... + 170208103.

It is an arithmetic number, because the mean of its divisors is an integer number (255312153).

Almost surely, 2^680832406 is an apocalyptic number.

680832406 is a deficient number, since it is larger than the sum of its proper divisors (340416206).

680832406 is a wasteful number, since it uses less digits than its factorization.

680832406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340416205.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 680832406 is about 26092.7653957951. The cubic root of 680832406 is about 879.7246064907.

The spelling of 680832406 in words is "six hundred eighty million, eight hundred thirty-two thousand, four hundred six".