27161284 has 12 divisors (see below), whose sum is σ = 49171500. Its totient is φ = 13112288.

The previous prime is 27161249. The next prime is 27161327. The reversal of 27161284 is 48216172.

It can be written as a sum of positive squares in 2 ways, for example, as 9437184 + 17724100 = 3072^2 + 4210^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116959 + ... + 117190.

It is an arithmetic number, because the mean of its divisors is an integer number (4097625).

Almost surely, 2^27161284 is an apocalyptic number.

It is an amenable number.

27161284 is a deficient number, since it is larger than the sum of its proper divisors (22010216).

27161284 is a wasteful number, since it uses less digits than its factorization.

27161284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234182 (or 234180 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 27161284 is about 5211.6488753561. The cubic root of 27161284 is about 300.5961626637.

The spelling of 27161284 in words is "twenty-seven million, one hundred sixty-one thousand, two hundred eighty-four".