27871131 has 8 divisors (see below), whose sum is σ = 37384704. Its totient is φ = 18469160.

The previous prime is 27871097. The next prime is 27871133. The reversal of 27871131 is 13117872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27871131 - 2⁷ = 27871003 is a prime.

It is a super-2 number, since 2×27871131² = 1553599886438322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27871133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27315 + ... + 28316.

It is an arithmetic number, because the mean of its divisors is an integer number (4673088).

Almost surely, 2^27871131 is an apocalyptic number.

27871131 is a deficient number, since it is larger than the sum of its proper divisors (9513573).

27871131 is a wasteful number, since it uses less digits than its factorization.

27871131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55801.

The product of its digits is 2352, while the sum is 30.

The square root of 27871131 is about 5279.3116028513. The cubic root of 27871131 is about 303.1923209104.

The spelling of 27871131 in words is "twenty-seven million, eight hundred seventy-one thousand, one hundred thirty-one".