27774090 has 80 divisors (see below), whose sum is σ = 79113672. Its totient is φ = 6967296.

The previous prime is 27774079. The next prime is 27774119. The reversal of 27774090 is 9047772.

It can be written as a sum of positive squares in 4 ways, for example, as 27342441 + 431649 = 5229^2 + 657^2 .

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 39 ways as a sum of consecutive naturals, for example, 12762 + ... + 14778.

Almost surely, 2^27774090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27774090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39556836).

27774090 is an abundant number, since it is smaller than the sum of its proper divisors (51339582).

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

27774090 is a wasteful number, since it uses less digits than its factorization.

27774090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 27774090 is about 5270.1129020164. The cubic root of 27774090 is about 302.8400292717.

The spelling of 27774090 in words is "twenty-seven million, seven hundred seventy-four thousand, ninety".