27969536 has 48 divisors (see below), whose sum is σ = 63947520. Its totient is φ = 11980800.

The previous prime is 27969523. The next prime is 27969563. The reversal of 27969536 is 63596972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13361 + ... + 15311.

It is an arithmetic number, because the mean of its divisors is an integer number (1332240).

Almost surely, 2^27969536 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 27969536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31973760).

27969536 is an abundant number, since it is smaller than the sum of its proper divisors (35977984).

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

27969536 is an equidigital number, since it uses as much as digits as its factorization.

27969536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980 (or 1960 counting only the distinct ones).

The product of its digits is 612360, while the sum is 47.

The square root of 27969536 is about 5288.6232613035. The cubic root of 27969536 is about 303.5487302640.

The spelling of 27969536 in words is "twenty-seven million, nine hundred sixty-nine thousand, five hundred thirty-six".