27404891 has 8 divisors (see below), whose sum is σ = 28737024. Its totient is φ = 26084520.

The previous prime is 27404879. The next prime is 27404893. The reversal of 27404891 is 19840472.

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

It is a cyclic number.

It is not a de Polignac number, because 27404891 - 2¹⁴ = 27388507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27404893) 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, 2030 + ... + 7676.

It is an arithmetic number, because the mean of its divisors is an integer number (3592128).

Almost surely, 2^27404891 is an apocalyptic number.

27404891 is a deficient number, since it is larger than the sum of its proper divisors (1332133).

27404891 is a wasteful number, since it uses less digits than its factorization.

27404891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 27404891 is about 5234.9680992342. The cubic root of 27404891 is about 301.4921621648.

The spelling of 27404891 in words is "twenty-seven million, four hundred four thousand, eight hundred ninety-one".