686773296 has 160 divisors (see below), whose sum is σ = 2201168640. Its totient is φ = 203212800.

The previous prime is 686773277. The next prime is 686773301. The reversal of 686773296 is 692377686.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202656 + ... + 206016.

It is an arithmetic number, because the mean of its divisors is an integer number (13757304).

Almost surely, 2^686773296 is an apocalyptic number.

686773296 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686773296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100584320).

686773296 is an abundant number, since it is smaller than the sum of its proper divisors (1514395344).

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

686773296 is a wasteful number, since it uses less digits than its factorization.

686773296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432 (or 3420 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 686773296 is about 26206.3598387872. The cubic root of 686773296 is about 882.2760022890.

The spelling of 686773296 in words is "six hundred eighty-six million, seven hundred seventy-three thousand, two hundred ninety-six".