27689748 has 12 divisors (see below), whose sum is σ = 64609440. Its totient is φ = 9229912.

The previous prime is 27689747. The next prime is 27689749. The reversal of 27689748 is 84798672.

It is an interprime number because it is at equal distance from previous prime (27689747) and next prime (27689749).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 27689748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27689743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153728 + ... + 1153751.

It is an arithmetic number, because the mean of its divisors is an integer number (5384120).

Almost surely, 2^27689748 is an apocalyptic number.

It is an amenable number.

27689748 is an abundant number, since it is smaller than the sum of its proper divisors (36919692).

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

27689748 is a wasteful number, since it uses less digits than its factorization.

27689748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307486 (or 2307484 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 27689748 is about 5262.1049020330. The cubic root of 27689748 is about 302.5331721471.

The spelling of 27689748 in words is "twenty-seven million, six hundred eighty-nine thousand, seven hundred forty-eight".