27989094 has 96 divisors (see below), whose sum is σ = 69866496. Its totient is φ = 7439040.

The previous prime is 27989077. The next prime is 27989153. The reversal of 27989094 is 49098972.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 337177 + ... + 337259.

It is an arithmetic number, because the mean of its divisors is an integer number (727776).

Almost surely, 2^27989094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27989094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34933248).

27989094 is an abundant number, since it is smaller than the sum of its proper divisors (41877402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27989094 is a wasteful number, since it uses less digits than its factorization.

27989094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 27989094 is about 5290.4720016271. The cubic root of 27989094 is about 303.6194670210.

It can be divided in two parts, 27 and 989094, that added together give a triangular number (989121 = T₁₄₀₆).

The spelling of 27989094 in words is "twenty-seven million, nine hundred eighty-nine thousand, ninety-four".