27922793 has 4 divisors (see below), whose sum is σ = 28031700. Its totient is φ = 27813888.

The previous prime is 27922757. The next prime is 27922813. The reversal of 27922793 is 39722972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22963264 + 4959529 = 4792^2 + 2227^2 .

It is a cyclic number.

It is not a de Polignac number, because 27922793 - 2⁶ = 27922729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27922793.

It is not an unprimeable number, because it can be changed into a prime (27922703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54068 + ... + 54581.

It is an arithmetic number, because the mean of its divisors is an integer number (7007925).

Almost surely, 2^27922793 is an apocalyptic number.

It is an amenable number.

27922793 is a deficient number, since it is larger than the sum of its proper divisors (108907).

27922793 is a wasteful number, since it uses less digits than its factorization.

27922793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108906.

The product of its digits is 95256, while the sum is 41.

The square root of 27922793 is about 5284.2022103625. The cubic root of 27922793 is about 303.3795379709.

The spelling of 27922793 in words is "twenty-seven million, nine hundred twenty-two thousand, seven hundred ninety-three".