230691 has 8 divisors (see below), whose sum is σ = 310464. Its totient is φ = 152360.

The previous prime is 230683. The next prime is 230693. The reversal of 230691 is 196032.

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

It is a cyclic number.

It is not a de Polignac number, because 230691 - 2³ = 230683 is a prime.

230691 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (230693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100 + ... + 686.

It is an arithmetic number, because the mean of its divisors is an integer number (38808).

2²³⁰⁶⁹¹ is an apocalyptic number.

230691 is a deficient number, since it is larger than the sum of its proper divisors (79773).

230691 is a wasteful number, since it uses less digits than its factorization.

230691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 230691 is about 480.3030293471. The cubic root of 230691 is about 61.3305534604.

The spelling of 230691 in words is "two hundred thirty thousand, six hundred ninety-one".