27968051 has 4 divisors (see below), whose sum is σ = 28169400. Its totient is φ = 27766704.

The previous prime is 27968033. The next prime is 27968053. The reversal of 27968051 is 15086972.

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 27968051 - 2⁶ = 27967987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27967996 and 27968014.

It is not an unprimeable number, because it can be changed into a prime (27968053) 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, 100466 + ... + 100743.

It is an arithmetic number, because the mean of its divisors is an integer number (7042350).

Almost surely, 2^27968051 is an apocalyptic number.

27968051 is a deficient number, since it is larger than the sum of its proper divisors (201349).

27968051 is a wasteful number, since it uses less digits than its factorization.

27968051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201348.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 27968051 is about 5288.4828637332. The cubic root of 27968051 is about 303.5433580161.

The spelling of 27968051 in words is "twenty-seven million, nine hundred sixty-eight thousand, fifty-one".