689770125 has 96 divisors (see below), whose sum is σ = 1369630080. Its totient is φ = 331200000.

The previous prime is 689770111. The next prime is 689770153. The reversal of 689770125 is 521077986.

It is not a de Polignac number, because 689770125 - 2⁶ = 689770061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1719925 + ... + 1720325.

It is an arithmetic number, because the mean of its divisors is an integer number (14266980).

Almost surely, 2^689770125 is an apocalyptic number.

It is an amenable number.

689770125 is a deficient number, since it is larger than the sum of its proper divisors (679859955).

689770125 is a wasteful number, since it uses less digits than its factorization.

689770125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 689770125 is about 26263.4751127873. The cubic root of 689770125 is about 883.5574507470.

The spelling of 689770125 in words is "six hundred eighty-nine million, seven hundred seventy thousand, one hundred twenty-five".