27836145 has 12 divisors (see below), whose sum is σ = 48249396. Its totient is φ = 14845920.

The previous prime is 27836119. The next prime is 27836147. The reversal of 27836145 is 54163872.

It can be written as a sum of positive squares in 2 ways, for example, as 18045504 + 9790641 = 4248^2 + 3129^2 .

It is not a de Polignac number, because 27836145 - 2⁸ = 27835889 is a prime.

It is a super-2 number, since 2×27836145² = 1549701936922050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (27836147) 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, 309246 + ... + 309335.

It is an arithmetic number, because the mean of its divisors is an integer number (4020783).

Almost surely, 2^27836145 is an apocalyptic number.

It is an amenable number.

27836145 is a deficient number, since it is larger than the sum of its proper divisors (20413251).

27836145 is a wasteful number, since it uses less digits than its factorization.

27836145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618592 (or 618589 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 27836145 is about 5275.9970621675. The cubic root of 27836145 is about 303.0654043041.

The spelling of 27836145 in words is "twenty-seven million, eight hundred thirty-six thousand, one hundred forty-five".