689858424 has 32 divisors (see below), whose sum is σ = 1916274000. Its totient is φ = 229952736.

The previous prime is 689858423. The next prime is 689858447. The reversal of 689858424 is 424858986.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689858423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1596679 + ... + 1597110.

Almost surely, 2^689858424 is an apocalyptic number.

It is an amenable number.

689858424 is an abundant number, since it is smaller than the sum of its proper divisors (1226415576).

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

689858424 is a wasteful number, since it uses less digits than its factorization.

689858424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193804 (or 3193794 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The square root of 689858424 is about 26265.1560817750. The cubic root of 689858424 is about 883.5951511865.

The spelling of 689858424 in words is "six hundred eighty-nine million, eight hundred fifty-eight thousand, four hundred twenty-four".