689292852 has 12 divisors (see below), whose sum is σ = 1608350016. Its totient is φ = 229764280.

The previous prime is 689292847. The next prime is 689292853. The reversal of 689292852 is 258292986.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 689292795 and 689292804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689292853) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28720524 + ... + 28720547.

It is an arithmetic number, because the mean of its divisors is an integer number (134029168).

Almost surely, 2^689292852 is an apocalyptic number.

It is an amenable number.

689292852 is an abundant number, since it is smaller than the sum of its proper divisors (919057164).

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

689292852 is a wasteful number, since it uses less digits than its factorization.

689292852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57441078 (or 57441076 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 689292852 is about 26254.3872905082. The cubic root of 689292852 is about 883.3536169386.

The spelling of 689292852 in words is "six hundred eighty-nine million, two hundred ninety-two thousand, eight hundred fifty-two".