27939253 has 4 divisors (see below), whose sum is σ = 29409760. Its totient is φ = 26468748.

The previous prime is 27939251. The next prime is 27939257. The reversal of 27939253 is 35293972.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 27939253 - 2¹ = 27939251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27939251) 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, 735225 + ... + 735262.

It is an arithmetic number, because the mean of its divisors is an integer number (7352440).

Almost surely, 2^27939253 is an apocalyptic number.

It is an amenable number.

27939253 is a deficient number, since it is larger than the sum of its proper divisors (1470507).

27939253 is a wasteful number, since it uses less digits than its factorization.

27939253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470506.

The product of its digits is 102060, while the sum is 40.

The square root of 27939253 is about 5285.7594534750. The cubic root of 27939253 is about 303.4391385787.

The spelling of 27939253 in words is "twenty-seven million, nine hundred thirty-nine thousand, two hundred fifty-three".