27240023 has 4 divisors (see below), whose sum is σ = 27613248. Its totient is φ = 26866800.

The previous prime is 27240013. The next prime is 27240049. The reversal of 27240023 is 32004272.

It is a happy number.

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 27240023 - 2⁴ = 27240007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27239977 and 27240004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27240013) 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, 186503 + ... + 186648.

It is an arithmetic number, because the mean of its divisors is an integer number (6903312).

Almost surely, 2^27240023 is an apocalyptic number.

27240023 is a deficient number, since it is larger than the sum of its proper divisors (373225).

27240023 is an equidigital number, since it uses as much as digits as its factorization.

27240023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373224.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 27240023 is about 5219.1975436843. The cubic root of 27240023 is about 300.8863527577.

Adding to 27240023 its reverse (32004272), we get a palindrome (59244295).

The spelling of 27240023 in words is "twenty-seven million, two hundred forty thousand, twenty-three".