27798265 has 16 divisors (see below), whose sum is σ = 36493056. Its totient is φ = 20160000.

The previous prime is 27798229. The next prime is 27798271. The reversal of 27798265 is 56289772.

It is not a de Polignac number, because 27798265 - 2⁹ = 27797753 is a prime.

It is a Duffinian number.

Its product of digits (423360) is a multiple of the sum of its prime divisors (1440).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36640 + ... + 37390.

It is an arithmetic number, because the mean of its divisors is an integer number (2280816).

Almost surely, 2^27798265 is an apocalyptic number.

It is an amenable number.

27798265 is a deficient number, since it is larger than the sum of its proper divisors (8694791).

27798265 is a wasteful number, since it uses less digits than its factorization.

27798265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440.

The product of its digits is 423360, while the sum is 46.

The square root of 27798265 is about 5272.4059972654. The cubic root of 27798265 is about 302.9278693483.

The spelling of 27798265 in words is "twenty-seven million, seven hundred ninety-eight thousand, two hundred sixty-five".