23085691 has 4 divisors (see below), whose sum is σ = 23095672. Its totient is φ = 23075712.

The previous prime is 23085683. The next prime is 23085707. The reversal of 23085691 is 19658032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23085691 - 2³ = 23085683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23085611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475 + ... + 6811.

It is an arithmetic number, because the mean of its divisors is an integer number (5773918).

Almost surely, 2^23085691 is an apocalyptic number.

23085691 is a deficient number, since it is larger than the sum of its proper divisors (9981).

23085691 is an equidigital number, since it uses as much as digits as its factorization.

23085691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9980.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 23085691 is about 4804.7571218533. The cubic root of 23085691 is about 284.7394397058.

The spelling of 23085691 in words is "twenty-three million, eighty-five thousand, six hundred ninety-one".