27849131 has 4 divisors (see below), whose sum is σ = 28026672. Its totient is φ = 27671592.

The previous prime is 27849109. The next prime is 27849149. The reversal of 27849131 is 13194872.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27849131 - 2¹⁴ = 27832747 is a prime.

It is a super-2 number, since 2×27849131² = 1551148194910322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27849091 and 27849100.

It is not an unprimeable number, because it can be changed into a prime (27849331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88535 + ... + 88848.

It is an arithmetic number, because the mean of its divisors is an integer number (7006668).

Almost surely, 2^27849131 is an apocalyptic number.

27849131 is a deficient number, since it is larger than the sum of its proper divisors (177541).

27849131 is a wasteful number, since it uses less digits than its factorization.

27849131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177540.

The product of its digits is 12096, while the sum is 35.

The square root of 27849131 is about 5277.2275865268. The cubic root of 27849131 is about 303.1125252386.

The spelling of 27849131 in words is "twenty-seven million, eight hundred forty-nine thousand, one hundred thirty-one".