689225 has 12 divisors (see below), whose sum is σ = 900240. Its totient is φ = 522000.

The previous prime is 689219. The next prime is 689233. The reversal of 689225 is 522986.

It is not a de Polignac number, because 689225 - 2⁸ = 688969 is a prime.

It is a super-2 number, since 2×689225² = 950062201250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 689191 and 689200.

It is an unprimeable 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 11 ways as a sum of consecutive naturals, for example, 251 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (75020).

2⁶⁸⁹²²⁵ is an apocalyptic number.

It is an amenable number.

689225 is a deficient number, since it is larger than the sum of its proper divisors (211015).

689225 is a wasteful number, since it uses less digits than its factorization.

689225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480 (or 1475 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 689225 is about 830.1957600470. The cubic root of 689225 is about 88.3324631060.

The spelling of 689225 in words is "six hundred eighty-nine thousand, two hundred twenty-five".