23693091 has 4 divisors (see below), whose sum is σ = 31590792. Its totient is φ = 15795392.

The previous prime is 23693051. The next prime is 23693113. The reversal of 23693091 is 19039632.

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 23693091 - 2⁹ = 23692579 is a prime.

It is a super-2 number, since 2×23693091² = 1122725122268562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23693011) 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, 3948846 + ... + 3948851.

It is an arithmetic number, because the mean of its divisors is an integer number (7897698).

Almost surely, 2^23693091 is an apocalyptic number.

23693091 is a deficient number, since it is larger than the sum of its proper divisors (7897701).

23693091 is an equidigital number, since it uses as much as digits as its factorization.

23693091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7897700.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 23693091 is about 4867.5549303526. The cubic root of 23693091 is about 287.2150815644.

It can be divided in two parts, 2369 and 3091, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 23693091 in words is "twenty-three million, six hundred ninety-three thousand, ninety-one".