27740089 has 12 divisors (see below), whose sum is σ = 30438436. Its totient is φ = 25131168.

The previous prime is 27740051. The next prime is 27740099. The reversal of 27740089 is 98004772.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1392400 + 26347689 = 1180^2 + 5133^2 .

It is not a de Polignac number, because 27740089 - 2⁹ = 27739577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27740029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44947 + ... + 45559.

Almost surely, 2^27740089 is an apocalyptic number.

It is an amenable number.

27740089 is a deficient number, since it is larger than the sum of its proper divisors (2698347).

27740089 is an equidigital number, since it uses as much as digits as its factorization.

27740089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 27740089 is about 5266.8860819273. The cubic root of 27740089 is about 302.7164000367.

The spelling of 27740089 in words is "twenty-seven million, seven hundred forty thousand, eighty-nine".