27869427 has 12 divisors (see below), whose sum is σ = 41747160. Its totient is φ = 18579456.

The previous prime is 27869423. The next prime is 27869437. The reversal of 27869427 is 72496872.

It is not a de Polignac number, because 27869427 - 2² = 27869423 is a prime.

It is a super-2 number, since 2×27869427² = 1553409922616658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27869423) 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, 57102 + ... + 57587.

It is an arithmetic number, because the mean of its divisors is an integer number (3478930).

Almost surely, 2^27869427 is an apocalyptic number.

27869427 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

27869427 is a deficient number, since it is larger than the sum of its proper divisors (13877733).

27869427 is an equidigital number, since it uses as much as digits as its factorization.

27869427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114704 (or 114692 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 27869427 is about 5279.1502157071. The cubic root of 27869427 is about 303.1861418735.

The spelling of 27869427 in words is "twenty-seven million, eight hundred sixty-nine thousand, four hundred twenty-seven".