23236849 has 4 divisors (see below), whose sum is σ = 23555236. Its totient is φ = 22918464.

The previous prime is 23236817. The next prime is 23236861. The reversal of 23236849 is 94863232.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11458225 + 11778624 = 3385^2 + 3432^2 .

It is a cyclic number.

It is not a de Polignac number, because 23236849 - 2⁵ = 23236817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23236249) 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, 159084 + ... + 159229.

It is an arithmetic number, because the mean of its divisors is an integer number (5888809).

Almost surely, 2^23236849 is an apocalyptic number.

It is an amenable number.

23236849 is a deficient number, since it is larger than the sum of its proper divisors (318387).

23236849 is an equidigital number, since it uses as much as digits as its factorization.

23236849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318386.

The product of its digits is 62208, while the sum is 37.

The square root of 23236849 is about 4820.4614924300. The cubic root of 23236849 is about 285.3595503116.

The spelling of 23236849 in words is "twenty-three million, two hundred thirty-six thousand, eight hundred forty-nine".