689895225 has 144 divisors (see below), whose sum is σ = 1390188800. Its totient is φ = 338022720.

The previous prime is 689895197. The next prime is 689895251. The reversal of 689895225 is 522598986.

It is not a de Polignac number, because 689895225 - 2⁶ = 689895161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4963206 + ... + 4963344.

Almost surely, 2^689895225 is an apocalyptic number.

It is an amenable number.

689895225 is an abundant number, since it is smaller than the sum of its proper divisors (700293575).

689895225 is a wasteful number, since it uses less digits than its factorization.

689895225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 209 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 689895225 is about 26265.8566393712. The cubic root of 689895225 is about 883.6108629160.

Adding to 689895225 its product of digits (3110400), we get a square (693005625 = 26325²).

The spelling of 689895225 in words is "six hundred eighty-nine million, eight hundred ninety-five thousand, two hundred twenty-five".