27971105 has 8 divisors (see below), whose sum is σ = 35024832. Its totient is φ = 21403888.

The previous prime is 27971087. The next prime is 27971117. The reversal of 27971105 is 50117972.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27971105 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121499 + ... + 121728.

It is an arithmetic number, because the mean of its divisors is an integer number (4378104).

Almost surely, 2^27971105 is an apocalyptic number.

It is an amenable number.

27971105 is a deficient number, since it is larger than the sum of its proper divisors (7053727).

27971105 is a wasteful number, since it uses less digits than its factorization.

27971105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243255.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 27971105 is about 5288.7715965052. The cubic root of 27971105 is about 303.5544061900.

The spelling of 27971105 in words is "twenty-seven million, nine hundred seventy-one thousand, one hundred five".