27911952 has 70 divisors (see below), whose sum is σ = 81115902. Its totient is φ = 9300096.

The previous prime is 27911951. The next prime is 27911959. The reversal of 27911952 is 25911972.

It can be written as a sum of positive squares in only one way, i.e., 15968016 + 11943936 = 3996^2 + 3456^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (27911951) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 10468 + ... + 12860.

Almost surely, 2^27911952 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 27911952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40557951).

27911952 is an abundant number, since it is smaller than the sum of its proper divisors (53203950).

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

27911952 is an equidigital number, since it uses as much as digits as its factorization.

27911952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419 (or 2398 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 27911952 is about 5283.1763173303. The cubic root of 27911952 is about 303.3402706084.

The spelling of 27911952 in words is "twenty-seven million, nine hundred eleven thousand, nine hundred fifty-two".