27120090 has 32 divisors (see below), whose sum is σ = 65442816. Its totient is φ = 7192640.

The previous prime is 27120043. The next prime is 27120097. The reversal of 27120090 is 9002172.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27120097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3364 + ... + 8096.

It is an arithmetic number, because the mean of its divisors is an integer number (2045088).

Almost surely, 2^27120090 is an apocalyptic number.

27120090 is an abundant number, since it is smaller than the sum of its proper divisors (38322726).

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

27120090 is a wasteful number, since it uses less digits than its factorization.

27120090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934.

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

The square root of 27120090 is about 5207.6952675824. The cubic root of 27120090 is about 300.4441199782. Note that the first 3 decimals are identical.

The spelling of 27120090 in words is "twenty-seven million, one hundred twenty thousand, ninety".