682309788 has 12 divisors (see below), whose sum is σ = 1592056200. Its totient is φ = 227436592.

The previous prime is 682309781. The next prime is 682309799. The reversal of 682309788 is 887903286.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 682309788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682309781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28429563 + ... + 28429586.

It is an arithmetic number, because the mean of its divisors is an integer number (132671350).

Almost surely, 2^682309788 is an apocalyptic number.

It is an amenable number.

682309788 is an abundant number, since it is smaller than the sum of its proper divisors (909746412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

682309788 is a wasteful number, since it uses less digits than its factorization.

682309788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56859156 (or 56859154 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 682309788 is about 26121.0602388188. The cubic root of 682309788 is about 880.3604704349.

The spelling of 682309788 in words is "six hundred eighty-two million, three hundred nine thousand, seven hundred eighty-eight".