27864053 has 4 divisors (see below), whose sum is σ = 31844640. Its totient is φ = 23883468.

The previous prime is 27864047. The next prime is 27864059. The reversal of 27864053 is 35046872.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (27864047) and next prime (27864059).

It is not a de Polignac number, because 27864053 - 2¹⁰ = 27863029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27864059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1990283 + ... + 1990296.

It is an arithmetic number, because the mean of its divisors is an integer number (7961160).

Almost surely, 2^27864053 is an apocalyptic number.

It is an amenable number.

27864053 is a deficient number, since it is larger than the sum of its proper divisors (3980587).

27864053 is an equidigital number, since it uses as much as digits as its factorization.

27864053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980586.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 27864053 is about 5278.6412077352. The cubic root of 27864053 is about 303.1666530496.

The spelling of 27864053 in words is "twenty-seven million, eight hundred sixty-four thousand, fifty-three".