27828372 has 48 divisors (see below), whose sum is σ = 76289472. Its totient is φ = 7783680.

The previous prime is 27828349. The next prime is 27828373. The reversal of 27828372 is 27382872.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 27828372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27828373) 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, 6393 + ... + 9824.

It is an arithmetic number, because the mean of its divisors is an integer number (1589364).

Almost surely, 2^27828372 is an apocalyptic number.

27828372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27828372 is an abundant number, since it is smaller than the sum of its proper divisors (48461100).

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

27828372 is a wasteful number, since it uses less digits than its factorization.

27828372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16248 (or 16246 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 27828372 is about 5275.2603727210. The cubic root of 27828372 is about 303.0371922236.

The spelling of 27828372 in words is "twenty-seven million, eight hundred twenty-eight thousand, three hundred seventy-two".