689425858 has 8 divisors (see below), whose sum is σ = 1128151440. Its totient is φ = 313375380.

The previous prime is 689425823. The next prime is 689425859. The reversal of 689425858 is 858524986.

It is a happy number.

689425858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 689425799 and 689425808.

It is not an unprimeable number, because it can be changed into a prime (689425859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15668748 + ... + 15668791.

It is an arithmetic number, because the mean of its divisors is an integer number (141018930).

Almost surely, 2^689425858 is an apocalyptic number.

689425858 is a deficient number, since it is larger than the sum of its proper divisors (438725582).

689425858 is a wasteful number, since it uses less digits than its factorization.

689425858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31337552.

The product of its digits is 5529600, while the sum is 55.

The square root of 689425858 is about 26256.9201925892. The cubic root of 689425858 is about 883.4104306111.

The spelling of 689425858 in words is "six hundred eighty-nine million, four hundred twenty-five thousand, eight hundred fifty-eight".