27342839 has 2 divisors, whose sum is σ = 27342840. Its totient is φ = 27342838.

The previous prime is 27342803. The next prime is 27342869. The reversal of 27342839 is 93824372.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27342839 - 2²⁴ = 10565623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27342869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13671419 + 13671420.

It is an arithmetic number, because the mean of its divisors is an integer number (13671420).

Almost surely, 2^27342839 is an apocalyptic number.

27342839 is a deficient number, since it is larger than the sum of its proper divisors (1).

27342839 is an equidigital number, since it uses as much as digits as its factorization.

27342839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 27342839 is about 5229.0380568514. The cubic root of 27342839 is about 301.2644372482.

The spelling of 27342839 in words is "twenty-seven million, three hundred forty-two thousand, eight hundred thirty-nine".