689476 has 12 divisors (see below), whose sum is σ = 1219708. Its totient is φ = 340992.

The previous prime is 689467. The next prime is 689509. The reversal of 689476 is 674986.

It can be written as a sum of positive squares in 2 ways, for example, as 329476 + 360000 = 574^2 + 600^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 16.

It is an unprimeable number.

689476 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501 + ... + 1276.

2⁶⁸⁹⁴⁷⁶ is an apocalyptic number.

It is an amenable number.

689476 is a deficient number, since it is larger than the sum of its proper divisors (530232).

689476 is a wasteful number, since it uses less digits than its factorization.

689476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878 (or 1876 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 689476 is about 830.3469154516. The cubic root of 689476 is about 88.3431846930.

The spelling of 689476 in words is "six hundred eighty-nine thousand, four hundred seventy-six".