689494 has 16 divisors (see below), whose sum is σ = 1163232. Its totient is φ = 304128.

The previous prime is 689467. The next prime is 689509. The reversal of 689494 is 494986.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22 + ... + 1174.

It is an arithmetic number, because the mean of its divisors is an integer number (72702).

2⁶⁸⁹⁴⁹⁴ is an apocalyptic number.

689494 is a deficient number, since it is larger than the sum of its proper divisors (473738).

689494 is a wasteful number, since it uses less digits than its factorization.

689494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its digits is 62208, while the sum is 40.

The square root of 689494 is about 830.3577542240. The cubic root of 689494 is about 88.3439534717.

The spelling of 689494 in words is "six hundred eighty-nine thousand, four hundred ninety-four".