27970863 has 8 divisors (see below), whose sum is σ = 37325568. Its totient is φ = 18631704.

The previous prime is 27970847. The next prime is 27970867. The reversal of 27970863 is 36807972.

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

It is not a de Polignac number, because 27970863 - 2⁴ = 27970847 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27970867) 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, 1306 + ... + 7592.

It is an arithmetic number, because the mean of its divisors is an integer number (4665696).

Almost surely, 2^27970863 is an apocalyptic number.

27970863 is a deficient number, since it is larger than the sum of its proper divisors (9354705).

27970863 is a wasteful number, since it uses less digits than its factorization.

27970863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7773.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 27970863 is about 5288.7487177971. The cubic root of 27970863 is about 303.5535307583.

The spelling of 27970863 in words is "twenty-seven million, nine hundred seventy thousand, eight hundred sixty-three".