689836722 has 16 divisors (see below), whose sum is σ = 1379962272. Its totient is φ = 229897440.

The previous prime is 689836709. The next prime is 689836747. The reversal of 689836722 is 227638986.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30678 + ... + 48174.

It is an arithmetic number, because the mean of its divisors is an integer number (86247642).

Almost surely, 2^689836722 is an apocalyptic number.

689836722 is an abundant number, since it is smaller than the sum of its proper divisors (690125550).

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

689836722 is a wasteful number, since it uses less digits than its factorization.

689836722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24073.

The product of its digits is 1741824, while the sum is 51.

The square root of 689836722 is about 26264.7429456296. The cubic root of 689836722 is about 883.5858855254.

The spelling of 689836722 in words is "six hundred eighty-nine million, eight hundred thirty-six thousand, seven hundred twenty-two".