27407872 has 40 divisors (see below), whose sum is σ = 55242000. Its totient is φ = 13584384.

The previous prime is 27407869. The next prime is 27407879. The reversal of 27407872 is 27870472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27407879) 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, 101754 + ... + 102022.

It is an arithmetic number, because the mean of its divisors is an integer number (1381050).

Almost surely, 2^27407872 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 27407872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27621000).

27407872 is an abundant number, since it is smaller than the sum of its proper divisors (27834128).

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

27407872 is an equidigital number, since it uses as much as digits as its factorization.

27407872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 27407872 is about 5235.2528114696. The cubic root of 27407872 is about 301.5030934927.

The spelling of 27407872 in words is "twenty-seven million, four hundred seven thousand, eight hundred seventy-two".