27798873 has 4 divisors (see below), whose sum is σ = 37065168. Its totient is φ = 18532580.

The previous prime is 27798829. The next prime is 27798887. The reversal of 27798873 is 37889772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27798873 - 2⁶ = 27798809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27798073) 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, 4633143 + ... + 4633148.

It is an arithmetic number, because the mean of its divisors is an integer number (9266292).

Almost surely, 2^27798873 is an apocalyptic number.

It is an amenable number.

27798873 is a deficient number, since it is larger than the sum of its proper divisors (9266295).

27798873 is an equidigital number, since it uses as much as digits as its factorization.

27798873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266294.

The product of its digits is 1185408, while the sum is 51.

The square root of 27798873 is about 5272.4636556358. The cubic root of 27798873 is about 302.9300778651.

The spelling of 27798873 in words is "twenty-seven million, seven hundred ninety-eight thousand, eight hundred seventy-three".