27864153 has 6 divisors (see below), whose sum is σ = 40248234. Its totient is φ = 18576096.

The previous prime is 27864149. The next prime is 27864211. The reversal of 27864153 is 35146872.

27864153 is a `hidden beast` number, since 2 + 7 + 8 + 641 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27846729 + 17424 = 5277^2 + 132^2 .

It is not a de Polignac number, because 27864153 - 2² = 27864149 is a prime.

It is a super-2 number, since 2×27864153² = 1552822044814818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27864103) 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, 1548000 + ... + 1548017.

It is an arithmetic number, because the mean of its divisors is an integer number (6708039).

Almost surely, 2^27864153 is an apocalyptic number.

It is an amenable number.

27864153 is a deficient number, since it is larger than the sum of its proper divisors (12384081).

27864153 is a wasteful number, since it uses less digits than its factorization.

27864153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096023 (or 3096020 counting only the distinct ones).

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

The square root of 27864153 is about 5278.6506798613. The cubic root of 27864153 is about 303.1670157227.

The spelling of 27864153 in words is "twenty-seven million, eight hundred sixty-four thousand, one hundred fifty-three".