27021090 has 32 divisors (see below), whose sum is σ = 67671936. Its totient is φ = 6892160.

The previous prime is 27021083. The next prime is 27021121. The reversal of 27021090 is 9012072.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18891 + ... + 20270.

It is an arithmetic number, because the mean of its divisors is an integer number (2114748).

Almost surely, 2^27021090 is an apocalyptic number.

27021090 is an abundant number, since it is smaller than the sum of its proper divisors (40650846).

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

27021090 is a wasteful number, since it uses less digits than its factorization.

27021090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39194.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 27021090 is about 5198.1814127635. The cubic root of 27021090 is about 300.0780907821.

The spelling of 27021090 in words is "twenty-seven million, twenty-one thousand, ninety".