27434889 has 16 divisors (see below), whose sum is σ = 43035840. Its totient is φ = 17213760.

The previous prime is 27434851. The next prime is 27434893. The reversal of 27434889 is 98843472.

It is not a de Polignac number, because 27434889 - 2¹³ = 27426697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27434809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29427 + ... + 30344.

It is an arithmetic number, because the mean of its divisors is an integer number (2689740).

Almost surely, 2^27434889 is an apocalyptic number.

It is an amenable number.

27434889 is a deficient number, since it is larger than the sum of its proper divisors (15600951).

27434889 is a wasteful number, since it uses less digits than its factorization.

27434889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59797 (or 59791 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 27434889 is about 5237.8324715477. The cubic root of 27434889 is about 301.6021287143.

The spelling of 27434889 in words is "twenty-seven million, four hundred thirty-four thousand, eight hundred eighty-nine".