689229926 has 32 divisors (see below), whose sum is σ = 1320399360. Its totient is φ = 261979200.

The previous prime is 689229923. The next prime is 689229943. The reversal of 689229926 is 629922986.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689229923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48266 + ... + 60893.

It is an arithmetic number, because the mean of its divisors is an integer number (41262480).

Almost surely, 2^689229926 is an apocalyptic number.

689229926 is a deficient number, since it is larger than the sum of its proper divisors (631169434).

689229926 is a wasteful number, since it uses less digits than its factorization.

689229926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109220.

The product of its digits is 1679616, while the sum is 53.

The square root of 689229926 is about 26253.1888729731. The cubic root of 689229926 is about 883.3267354754.

The spelling of 689229926 in words is "six hundred eighty-nine million, two hundred twenty-nine thousand, nine hundred twenty-six".