27948271 has 4 divisors (see below), whose sum is σ = 30098152. Its totient is φ = 25798392.

The previous prime is 27948253. The next prime is 27948281. The reversal of 27948271 is 17284972.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27948271 is a prime.

It is a super-2 number, since 2×27948271² = 1562211703778882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27948251) 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, 1074921 + ... + 1074946.

It is an arithmetic number, because the mean of its divisors is an integer number (7524538).

Almost surely, 2^27948271 is an apocalyptic number.

27948271 is a deficient number, since it is larger than the sum of its proper divisors (2149881).

27948271 is a wasteful number, since it uses less digits than its factorization.

27948271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149880.

The product of its digits is 56448, while the sum is 40.

The square root of 27948271 is about 5286.6124314158. The cubic root of 27948271 is about 303.4717822550.

The spelling of 27948271 in words is "twenty-seven million, nine hundred forty-eight thousand, two hundred seventy-one".