27122849 has 16 divisors (see below), whose sum is σ = 29915088. Its totient is φ = 24440832.

The previous prime is 27122827. The next prime is 27122881. The reversal of 27122849 is 94822172.

It can be written as a sum of positive squares in 8 ways, for example, as 2122849 + 25000000 = 1457^2 + 5000^2 .

It is not a de Polignac number, because 27122849 - 2¹⁶ = 27057313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27122449) 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, 172679 + ... + 172835.

It is an arithmetic number, because the mean of its divisors is an integer number (1869693).

Almost surely, 2^27122849 is an apocalyptic number.

It is an amenable number.

27122849 is a deficient number, since it is larger than the sum of its proper divisors (2792239).

27122849 is a wasteful number, since it uses less digits than its factorization.

27122849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404.

The product of its digits is 16128, while the sum is 35.

The square root of 27122849 is about 5207.9601572977. The cubic root of 27122849 is about 300.4543079633.

The spelling of 27122849 in words is "twenty-seven million, one hundred twenty-two thousand, eight hundred forty-nine".