27650023 has 4 divisors (see below), whose sum is σ = 27815760. Its totient is φ = 27484288.

The previous prime is 27650009. The next prime is 27650033. The reversal of 27650023 is 32005672.

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 27650023 - 2¹⁷ = 27518951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27650023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27650003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82618 + ... + 82951.

It is an arithmetic number, because the mean of its divisors is an integer number (6953940).

Almost surely, 2^27650023 is an apocalyptic number.

27650023 is a deficient number, since it is larger than the sum of its proper divisors (165737).

27650023 is a wasteful number, since it uses less digits than its factorization.

27650023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165736.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 27650023 is about 5258.3289170610. The cubic root of 27650023 is about 302.3884268536.

Adding to 27650023 its reverse (32005672), we get a palindrome (59655695).

The spelling of 27650023 in words is "twenty-seven million, six hundred fifty thousand, twenty-three".