27039479 has 2 divisors, whose sum is σ = 27039480. Its totient is φ = 27039478.

The previous prime is 27039407. The next prime is 27039497. The reversal of 27039479 is 97493072.

Together with next prime (27039497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27039479 - 2²⁰ = 25990903 is a prime.

It is a super-2 number, since 2×27039479² = 1462266849182882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27039499) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13519739 + 13519740.

It is an arithmetic number, because the mean of its divisors is an integer number (13519740).

Almost surely, 2^27039479 is an apocalyptic number.

27039479 is a deficient number, since it is larger than the sum of its proper divisors (1).

27039479 is an equidigital number, since it uses as much as digits as its factorization.

27039479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 27039479 is about 5199.9499036048. The cubic root of 27039479 is about 300.1461473102.

The spelling of 27039479 in words is "twenty-seven million, thirty-nine thousand, four hundred seventy-nine".