27898839 has 12 divisors (see below), whose sum is σ = 42050736. Its totient is φ = 17790432.

The previous prime is 27898837. The next prime is 27898847. The reversal of 27898839 is 93889872.

It is not a de Polignac number, because 27898839 - 2¹ = 27898837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27898831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67182 + ... + 67595.

It is an arithmetic number, because the mean of its divisors is an integer number (3504228).

Almost surely, 2^27898839 is an apocalyptic number.

27898839 is a deficient number, since it is larger than the sum of its proper divisors (14151897).

27898839 is a wasteful number, since it uses less digits than its factorization.

27898839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134806 (or 134803 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 27898839 is about 5281.9351567394. The cubic root of 27898839 is about 303.2927602081.

It can be divided in two parts, 2789 and 8839, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 27898839 in words is "twenty-seven million, eight hundred ninety-eight thousand, eight hundred thirty-nine".