23971085 has 4 divisors (see below), whose sum is σ = 28765308. Its totient is φ = 19176864.

The previous prime is 23971063. The next prime is 23971093. The reversal of 23971085 is 58017932.

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 2866249 + 21104836 = 1693^2 + 4594^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23971085 is a prime.

It is a super-2 number, since 2×23971085² = 1149225832154450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2397104 + ... + 2397113.

It is an arithmetic number, because the mean of its divisors is an integer number (7191327).

Almost surely, 2^23971085 is an apocalyptic number.

It is an amenable number.

23971085 is a deficient number, since it is larger than the sum of its proper divisors (4794223).

23971085 is an equidigital number, since it uses as much as digits as its factorization.

23971085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794222.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 23971085 is about 4896.0274713282. The cubic root of 23971085 is about 288.3340268248.

The spelling of 23971085 in words is "twenty-three million, nine hundred seventy-one thousand, eighty-five".