27949253 has 4 divisors (see below), whose sum is σ = 27960108. Its totient is φ = 27938400.

The previous prime is 27949237. The next prime is 27949267. The reversal of 27949253 is 35294972.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1085764 + 26863489 = 1042^2 + 5183^2 .

It is a cyclic number.

It is not a de Polignac number, because 27949253 - 2⁴ = 27949237 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 27949253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27949223) by changing a digit.

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, 875 + ... + 7527.

It is an arithmetic number, because the mean of its divisors is an integer number (6990027).

Almost surely, 2^27949253 is an apocalyptic number.

It is an amenable number.

27949253 is a deficient number, since it is larger than the sum of its proper divisors (10855).

27949253 is an equidigital number, since it uses as much as digits as its factorization.

27949253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10854.

The product of its digits is 136080, while the sum is 41.

The square root of 27949253 is about 5286.7053067104. The cubic root of 27949253 is about 303.4753365094.

The spelling of 27949253 in words is "twenty-seven million, nine hundred forty-nine thousand, two hundred fifty-three".