27996049 has 6 divisors (see below), whose sum is σ = 28995590. Its totient is φ = 27029856.

The previous prime is 27995999. The next prime is 27996091. The reversal of 27996049 is 94069972.

It can be written as a sum of positive squares in 3 ways, for example, as 360000 + 27636049 = 600^2 + 5257^2 .

It is not a de Polignac number, because 27996049 - 2⁷ = 27995921 is a prime.

It is a super-2 number, since 2×27996049² = 1567557519220802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27990049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15804 + ... + 17485.

Almost surely, 2^27996049 is an apocalyptic number.

27996049 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

27996049 is a deficient number, since it is larger than the sum of its proper divisors (999541).

27996049 is an equidigital number, since it uses as much as digits as its factorization.

27996049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33347 (or 33318 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 27996049 is about 5291.1292745500. The cubic root of 27996049 is about 303.6446137026.

The spelling of 27996049 in words is "twenty-seven million, nine hundred ninety-six thousand, forty-nine".