27799122 has 16 divisors (see below), whose sum is σ = 59875200. Its totient is φ = 8553552.

The previous prime is 27799091. The next prime is 27799129. The reversal of 27799122 is 22199772.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (27799129) 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 7 ways as a sum of consecutive naturals, for example, 178122 + ... + 178277.

It is an arithmetic number, because the mean of its divisors is an integer number (3742200).

Almost surely, 2^27799122 is an apocalyptic number.

27799122 is an abundant number, since it is smaller than the sum of its proper divisors (32076078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27799122 is a wasteful number, since it uses less digits than its factorization.

27799122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356417.

The product of its digits is 31752, while the sum is 39.

The square root of 27799122 is about 5272.4872688324. The cubic root of 27799122 is about 302.9309823306.

It can be divided in two parts, 277 and 99122, that added together give a palindrome (99399).

The spelling of 27799122 in words is "twenty-seven million, seven hundred ninety-nine thousand, one hundred twenty-two".