27161829 has 12 divisors (see below), whose sum is σ = 39623532. Its totient is φ = 17928000.

The previous prime is 27161809. The next prime is 27161839. The reversal of 27161829 is 92816172.

It can be written as a sum of positive squares in 2 ways, for example, as 15444900 + 11716929 = 3930^2 + 3423^2 .

It is a de Polignac number, because none of the positive numbers 2^k-27161829 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 27161793 and 27161802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27161809) 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, 14032 + ... + 15849.

It is an arithmetic number, because the mean of its divisors is an integer number (3301961).

Almost surely, 2^27161829 is an apocalyptic number.

It is an amenable number.

27161829 is a deficient number, since it is larger than the sum of its proper divisors (12461703).

27161829 is a wasteful number, since it uses less digits than its factorization.

27161829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29988 (or 29985 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 27161829 is about 5211.7011618089. The cubic root of 27161829 is about 300.5981731701.

The spelling of 27161829 in words is "twenty-seven million, one hundred sixty-one thousand, eight hundred twenty-nine".