27798895 has 8 divisors (see below), whose sum is σ = 33387120. Its totient is φ = 22220160.

The previous prime is 27798887. The next prime is 27798899. The reversal of 27798895 is 59889772.

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

It is not a de Polignac number, because 27798895 - 2³ = 27798887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27798899) 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, 9351 + ... + 11959.

It is an arithmetic number, because the mean of its divisors is an integer number (4173390).

Almost surely, 2^27798895 is an apocalyptic number.

27798895 is a deficient number, since it is larger than the sum of its proper divisors (5588225).

27798895 is a wasteful number, since it uses less digits than its factorization.

27798895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745.

The product of its digits is 2540160, while the sum is 55.

The square root of 27798895 is about 5272.4657419466. The cubic root of 27798895 is about 302.9301577779.

The spelling of 27798895 in words is "twenty-seven million, seven hundred ninety-eight thousand, eight hundred ninety-five".