27689364 has 72 divisors (see below), whose sum is σ = 73932768. Its totient is φ = 9059040.

The previous prime is 27689351. The next prime is 27689371. The reversal of 27689364 is 46398672.

27689364 = T₆₂ + T₆₃ + ... + T₅₄₉.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59059 + ... + 59525.

It is an arithmetic number, because the mean of its divisors is an integer number (1026844).

Almost surely, 2^27689364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27689364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36966384).

27689364 is an abundant number, since it is smaller than the sum of its proper divisors (46243404).

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

27689364 is a wasteful number, since it uses less digits than its factorization.

27689364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 533 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 27689364 is about 5262.0684146066. The cubic root of 27689364 is about 302.5317736358.

The spelling of 27689364 in words is "twenty-seven million, six hundred eighty-nine thousand, three hundred sixty-four".