27668071 has 4 divisors (see below), whose sum is σ = 28342944. Its totient is φ = 26993200.

The previous prime is 27668033. The next prime is 27668099. The reversal of 27668071 is 17086672.

It is a happy number.

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 27668071 - 2⁹ = 27667559 is a prime.

It is a super-2 number, since 2×27668071² = 1531044305722082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27668071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27668171) 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, 337375 + ... + 337456.

It is an arithmetic number, because the mean of its divisors is an integer number (7085736).

Almost surely, 2^27668071 is an apocalyptic number.

27668071 is a deficient number, since it is larger than the sum of its proper divisors (674873).

27668071 is an equidigital number, since it uses as much as digits as its factorization.

27668071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674872.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 27668071 is about 5260.0447716726. The cubic root of 27668071 is about 302.4542052116.

The spelling of 27668071 in words is "twenty-seven million, six hundred sixty-eight thousand, seventy-one".