27213432 has 16 divisors (see below), whose sum is σ = 68033640. Its totient is φ = 9071136.

The previous prime is 27213421. The next prime is 27213437. The reversal of 27213432 is 23431272.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1133893 = 27213432 / (2 + 7 + 2 + 1 + 3 + 4 + 3 + 2).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27213437) 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, 566923 + ... + 566970.

Almost surely, 2^27213432 is an apocalyptic number.

It is an amenable number.

27213432 is an abundant number, since it is smaller than the sum of its proper divisors (40820208).

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

27213432 is a wasteful number, since it uses less digits than its factorization.

27213432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133902 (or 1133898 counting only the distinct ones).

The product of its digits is 2016, while the sum is 24.

The square root of 27213432 is about 5216.6494994393. The cubic root of 27213432 is about 300.7884150793.

The spelling of 27213432 in words is "twenty-seven million, two hundred thirteen thousand, four hundred thirty-two".