27280090 has 16 divisors (see below), whose sum is σ = 49170888. Its totient is φ = 10897216.

The previous prime is 27280079. The next prime is 27280091. The reversal of 27280090 is 9008272.

It can be written as a sum of positive squares in 4 ways, for example, as 11095561 + 16184529 = 3331^2 + 4023^2 .

It is not an unprimeable number, because it can be changed into a prime (27280091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8784 + ... + 11476.

Almost surely, 2^27280090 is an apocalyptic number.

27280090 is a deficient number, since it is larger than the sum of its proper divisors (21890798).

27280090 is a wasteful number, since it uses less digits than its factorization.

27280090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 27280090 is about 5223.0345585684. The cubic root of 27280090 is about 301.0338037774.

The spelling of 27280090 in words is "twenty-seven million, two hundred eighty thousand, ninety".