27864546 has 24 divisors (see below), whose sum is σ = 58264080. Its totient is φ = 8883336.

The previous prime is 27864541. The next prime is 27864553. The reversal of 27864546 is 64546872.

It is a super-2 number, since 2×27864546² = 1552865847572232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27864498 and 27864507.

It is not an unprimeable number, because it can be changed into a prime (27864541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1216 + ... + 7563.

It is an arithmetic number, because the mean of its divisors is an integer number (2427670).

Almost surely, 2^27864546 is an apocalyptic number.

27864546 is an abundant number, since it is smaller than the sum of its proper divisors (30399534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27864546 is a wasteful number, since it uses less digits than its factorization.

27864546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8830 (or 8807 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 27864546 is about 5278.6879051522. The cubic root of 27864546 is about 303.1684410197.

The spelling of 27864546 in words is "twenty-seven million, eight hundred sixty-four thousand, five hundred forty-six".