689474227 has 8 divisors (see below), whose sum is σ = 742758464. Its totient is φ = 636225408.

The previous prime is 689474221. The next prime is 689474239. The reversal of 689474227 is 722474986.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-689474227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689474221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42763 + ... + 56635.

It is an arithmetic number, because the mean of its divisors is an integer number (92844808).

Almost surely, 2^689474227 is an apocalyptic number.

689474227 is a deficient number, since it is larger than the sum of its proper divisors (53284237).

689474227 is a wasteful number, since it uses less digits than its factorization.

689474227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17709.

The product of its digits is 1354752, while the sum is 49.

The square root of 689474227 is about 26257.8412479015. The cubic root of 689474227 is about 883.4310896756.

The spelling of 689474227 in words is "six hundred eighty-nine million, four hundred seventy-four thousand, two hundred twenty-seven".