689470 has 8 divisors (see below), whose sum is σ = 1241064. Its totient is φ = 275784.

The previous prime is 689467. The next prime is 689509. The reversal of 689470 is 74986.

689470 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34464 + ... + 34483.

It is an arithmetic number, because the mean of its divisors is an integer number (155133).

2⁶⁸⁹⁴⁷⁰ is an apocalyptic number.

689470 is a deficient number, since it is larger than the sum of its proper divisors (551594).

689470 is a wasteful number, since it uses less digits than its factorization.

689470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68954.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 689470 is about 830.3433024960. The cubic root of 689470 is about 88.3429284304.

The spelling of 689470 in words is "six hundred eighty-nine thousand, four hundred seventy".