27938359 has 2 divisors, whose sum is σ = 27938360. Its totient is φ = 27938358.

The previous prime is 27938357. The next prime is 27938371. The reversal of 27938359 is 95383972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27938359 - 2¹ = 27938357 is a prime.

It is a super-2 number, since 2×27938359² = 1561103807225762, which contains 22 as substring.

Together with 27938357, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27938357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13969179 + 13969180.

It is an arithmetic number, because the mean of its divisors is an integer number (13969180).

Almost surely, 2^27938359 is an apocalyptic number.

27938359 is a deficient number, since it is larger than the sum of its proper divisors (1).

27938359 is an equidigital number, since it uses as much as digits as its factorization.

27938359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 46.

The square root of 27938359 is about 5285.6748859535. The cubic root of 27938359 is about 303.4359020631.

The spelling of 27938359 in words is "twenty-seven million, nine hundred thirty-eight thousand, three hundred fifty-nine".