689876522 has 4 divisors (see below), whose sum is σ = 1034814786. Its totient is φ = 344938260.

The previous prime is 689876521. The next prime is 689876531. The reversal of 689876522 is 225678986.

689876522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 494128441 + 195748081 = 22229^2 + 13991^2 .

It is not an unprimeable number, because it can be changed into a prime (689876521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172469129 + ... + 172469132.

Almost surely, 2^689876522 is an apocalyptic number.

689876522 is a deficient number, since it is larger than the sum of its proper divisors (344938264).

689876522 is a wasteful number, since it uses less digits than its factorization.

689876522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344938263.

The product of its digits is 2903040, while the sum is 53.

The square root of 689876522 is about 26265.5006044050. The cubic root of 689876522 is about 883.6028779725.

The spelling of 689876522 in words is "six hundred eighty-nine million, eight hundred seventy-six thousand, five hundred twenty-two".