27212889 has 16 divisors (see below), whose sum is σ = 40549824. Its totient is φ = 16089600.

The previous prime is 27212879. The next prime is 27212891. The reversal of 27212889 is 98821272.

It is not a de Polignac number, because 27212889 - 2⁹ = 27212377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27212819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8704 + ... + 11409.

It is an arithmetic number, because the mean of its divisors is an integer number (2534364).

Almost surely, 2^27212889 is an apocalyptic number.

It is an amenable number.

27212889 is a deficient number, since it is larger than the sum of its proper divisors (13336935).

27212889 is a wasteful number, since it uses less digits than its factorization.

27212889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20168.

The product of its digits is 32256, while the sum is 39.

The square root of 27212889 is about 5216.5974542799. The cubic root of 27212889 is about 300.7864144840.

The spelling of 27212889 in words is "twenty-seven million, two hundred twelve thousand, eight hundred eighty-nine".