27861053 has 4 divisors (see below), whose sum is σ = 30393888. Its totient is φ = 25328220.

The previous prime is 27861047. The next prime is 27861059. The reversal of 27861053 is 35016872.

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 (27861047) and next prime (27861059).

It is a cyclic number.

It is not a de Polignac number, because 27861053 - 2¹² = 27856957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27861059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1266401 + ... + 1266422.

It is an arithmetic number, because the mean of its divisors is an integer number (7598472).

Almost surely, 2^27861053 is an apocalyptic number.

It is an amenable number.

27861053 is a deficient number, since it is larger than the sum of its proper divisors (2532835).

27861053 is a wasteful number, since it uses less digits than its factorization.

27861053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532834.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 27861053 is about 5278.3570360482. The cubic root of 27861053 is about 303.1557724525.

The spelling of 27861053 in words is "twenty-seven million, eight hundred sixty-one thousand, fifty-three".