27601249 has 6 divisors (see below), whose sum is σ = 29887926. Its totient is φ = 25477920.

The previous prime is 27601237. The next prime is 27601261. The reversal of 27601249 is 94210672.

It is an interprime number because it is at equal distance from previous prime (27601237) and next prime (27601261).

It can be written as a sum of positive squares in 3 ways, for example, as 893025 + 26708224 = 945^2 + 5168^2 .

It is not a de Polignac number, because 27601249 - 2¹⁵ = 27568481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27601249.

It is not an unprimeable number, because it can be changed into a prime (27601229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81492 + ... + 81829.

It is an arithmetic number, because the mean of its divisors is an integer number (4981321).

Almost surely, 2^27601249 is an apocalyptic number.

It is an amenable number.

27601249 is a deficient number, since it is larger than the sum of its proper divisors (2286677).

27601249 is a wasteful number, since it uses less digits than its factorization.

27601249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163347 (or 163334 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 27601249 is about 5253.6890848241. The cubic root of 27601249 is about 302.2105201449.

The spelling of 27601249 in words is "twenty-seven million, six hundred one thousand, two hundred forty-nine".