689232727 has 4 divisors (see below), whose sum is σ = 693858600. Its totient is φ = 684606856.

The previous prime is 689232701. The next prime is 689232773. The reversal of 689232727 is 727232986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 689232727 - 2¹¹ = 689230679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689232227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2312713 + ... + 2313010.

It is an arithmetic number, because the mean of its divisors is an integer number (173464650).

Almost surely, 2^689232727 is an apocalyptic number.

689232727 is a deficient number, since it is larger than the sum of its proper divisors (4625873).

689232727 is a wasteful number, since it uses less digits than its factorization.

689232727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625872.

The product of its digits is 508032, while the sum is 46.

The square root of 689232727 is about 26253.2422188194. The cubic root of 689232727 is about 883.3279320741.

The spelling of 689232727 in words is "six hundred eighty-nine million, two hundred thirty-two thousand, seven hundred twenty-seven".