689312322 has 32 divisors (see below), whose sum is σ = 1556924160. Its totient is φ = 226002960.

The previous prime is 689312321. The next prime is 689312333. The reversal of 689312322 is 223213986.

It is a super-2 number, since 2×689312322² = 950302954522063368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (689312321) 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, 101338 + ... + 107925.

It is an arithmetic number, because the mean of its divisors is an integer number (48653880).

Almost surely, 2^689312322 is an apocalyptic number.

689312322 is an abundant number, since it is smaller than the sum of its proper divisors (867611838).

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

689312322 is a wasteful number, since it uses less digits than its factorization.

689312322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209335 (or 209329 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 689312322 is about 26254.7580830599. The cubic root of 689312322 is about 883.3619340291.

It can be divided in two parts, 68931 and 2322, that added together give a triangular number (71253 = T₃₇₇).

The spelling of 689312322 in words is "six hundred eighty-nine million, three hundred twelve thousand, three hundred twenty-two".