27865248 has 48 divisors (see below), whose sum is σ = 77001120. Its totient is φ = 8798976.

The previous prime is 27865241. The next prime is 27865273. The reversal of 27865248 is 84256872.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×27865248² = 1552944092203008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27865241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5815 + ... + 9462.

It is an arithmetic number, because the mean of its divisors is an integer number (1604190).

Almost surely, 2^27865248 is an apocalyptic number.

It is an amenable number.

27865248 is an abundant number, since it is smaller than the sum of its proper divisors (49135872).

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

27865248 is a wasteful number, since it uses less digits than its factorization.

27865248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15309 (or 15301 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 27865248 is about 5278.7543985300. The cubic root of 27865248 is about 303.1709869366.

The spelling of 27865248 in words is "twenty-seven million, eight hundred sixty-five thousand, two hundred forty-eight".