687873322 has 32 divisors (see below), whose sum is σ = 1106417664. Its totient is φ = 320166000.

The previous prime is 687873317. The next prime is 687873323. The reversal of 687873322 is 223378786.

It is not an unprimeable number, because it can be changed into a prime (687873323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176697 + ... + 180547.

It is an arithmetic number, because the mean of its divisors is an integer number (34575552).

Almost surely, 2^687873322 is an apocalyptic number.

687873322 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

687873322 is a deficient number, since it is larger than the sum of its proper divisors (418544342).

687873322 is a wasteful number, since it uses less digits than its factorization.

687873322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3994.

The product of its digits is 677376, while the sum is 46.

The square root of 687873322 is about 26227.3392093060. The cubic root of 687873322 is about 882.7468072518.

It can be divided in two parts, 6878 and 73322, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 687873322 in words is "six hundred eighty-seven million, eight hundred seventy-three thousand, three hundred twenty-two".