27971485 has 8 divisors (see below), whose sum is σ = 33661440. Its totient is φ = 22313424.

The previous prime is 27971479. The next prime is 27971497. The reversal of 27971485 is 58417972.

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

It is a cyclic number.

It is not a de Polignac number, because 27971485 - 2⁵ = 27971453 is a prime.

It is a congruent 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, 5997 + ... + 9586.

It is an arithmetic number, because the mean of its divisors is an integer number (4207680).

Almost surely, 2^27971485 is an apocalyptic number.

It is an amenable number.

27971485 is a deficient number, since it is larger than the sum of its proper divisors (5689955).

27971485 is a wasteful number, since it uses less digits than its factorization.

27971485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15947.

The product of its digits is 141120, while the sum is 43.

The square root of 27971485 is about 5288.8075215496. The cubic root of 27971485 is about 303.5557808247. Note that the first 3 decimals are identical.

The spelling of 27971485 in words is "twenty-seven million, nine hundred seventy-one thousand, four hundred eighty-five".