27856151 has 8 divisors (see below), whose sum is σ = 29121504. Its totient is φ = 26595360.

The previous prime is 27856139. The next prime is 27856163. The reversal of 27856151 is 15165872.

It is an interprime number because it is at equal distance from previous prime (27856139) and next prime (27856163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-27856151 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 (27856181) 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, 19481 + ... + 20861.

It is an arithmetic number, because the mean of its divisors is an integer number (3640188).

Almost surely, 2^27856151 is an apocalyptic number.

27856151 is a deficient number, since it is larger than the sum of its proper divisors (1265353).

27856151 is a wasteful number, since it uses less digits than its factorization.

27856151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281.

The product of its digits is 16800, while the sum is 35.

The square root of 27856151 is about 5277.8926665858. The cubic root of 27856151 is about 303.1379918759.

The spelling of 27856151 in words is "twenty-seven million, eight hundred fifty-six thousand, one hundred fifty-one".