27891059 has 8 divisors (see below), whose sum is σ = 32087808. Its totient is φ = 23747400.

The previous prime is 27891023. The next prime is 27891077. The reversal of 27891059 is 95019872.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27891059 is a prime.

It is a super-2 number, since 2×27891059² = 1555822344282962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27891559) 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, 12137 + ... + 14250.

It is an arithmetic number, because the mean of its divisors is an integer number (4010976).

Almost surely, 2^27891059 is an apocalyptic number.

27891059 is a deficient number, since it is larger than the sum of its proper divisors (4196749).

27891059 is a wasteful number, since it uses less digits than its factorization.

27891059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26545.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 27891059 is about 5281.1986328863. The cubic root of 27891059 is about 303.2645650439.

The spelling of 27891059 in words is "twenty-seven million, eight hundred ninety-one thousand, fifty-nine".