689472846 has 12 divisors (see below), whose sum is σ = 1493857872. Its totient is φ = 229824276.

The previous prime is 689472821. The next prime is 689472857. The reversal of 689472846 is 648274986.

It is a junction number, because it is equal to n+sod(n) for n = 689472792 and 689472801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19152006 + ... + 19152041.

It is an arithmetic number, because the mean of its divisors is an integer number (124488156).

Almost surely, 2^689472846 is an apocalyptic number.

689472846 is an abundant number, since it is smaller than the sum of its proper divisors (804385026).

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

689472846 is a wasteful number, since it uses less digits than its factorization.

689472846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38304055 (or 38304052 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The square root of 689472846 is about 26257.8149509817. The cubic root of 689472846 is about 883.4304998449.

The spelling of 689472846 in words is "six hundred eighty-nine million, four hundred seventy-two thousand, eight hundred forty-six".