27966071 has 8 divisors (see below), whose sum is σ = 33841440. Its totient is φ = 22560768.

The previous prime is 27966049. The next prime is 27966077. The reversal of 27966071 is 17066972.

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

It is not a de Polignac number, because 27966071 - 2⁶ = 27966007 is a prime.

It is a super-2 number, since 2×27966071² = 1564202254354082, 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 (27966077) 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, 117386 + ... + 117623.

It is an arithmetic number, because the mean of its divisors is an integer number (4230180).

Almost surely, 2^27966071 is an apocalyptic number.

27966071 is a deficient number, since it is larger than the sum of its proper divisors (5875369).

27966071 is a wasteful number, since it uses less digits than its factorization.

27966071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235033.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 27966071 is about 5288.2956611748. The cubic root of 27966071 is about 303.5361947231.

The spelling of 27966071 in words is "twenty-seven million, nine hundred sixty-six thousand, seventy-one".