23262991 has 4 divisors (see below), whose sum is σ = 23543352. Its totient is φ = 22982632.

The previous prime is 23262947. The next prime is 23262997. The reversal of 23262991 is 19926232.

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 23262991 - 2¹³ = 23254799 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 (23262997) 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, 140056 + ... + 140221.

It is an arithmetic number, because the mean of its divisors is an integer number (5885838).

Almost surely, 2^23262991 is an apocalyptic number.

23262991 is a deficient number, since it is larger than the sum of its proper divisors (280361).

23262991 is an equidigital number, since it uses as much as digits as its factorization.

23262991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280360.

The product of its digits is 11664, while the sum is 34.

The square root of 23262991 is about 4823.1722963212. The cubic root of 23262991 is about 285.4665222681.

The spelling of 23262991 in words is "twenty-three million, two hundred sixty-two thousand, nine hundred ninety-one".