27121272 has 16 divisors (see below), whose sum is σ = 67803240. Its totient is φ = 9040416.

The previous prime is 27121229. The next prime is 27121291. The reversal of 27121272 is 27212172.

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: 1130053 = 27121272 / (2 + 7 + 1 + 2 + 1 + 2 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565003 + ... + 565050.

Almost surely, 2^27121272 is an apocalyptic number.

It is an amenable number.

27121272 is an abundant number, since it is smaller than the sum of its proper divisors (40681968).

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

27121272 is a wasteful number, since it uses less digits than its factorization.

27121272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130062 (or 1130058 counting only the distinct ones).

The product of its digits is 784, while the sum is 24.

The square root of 27121272 is about 5207.8087522489. The cubic root of 27121272 is about 300.4484847595.

The spelling of 27121272 in words is "twenty-seven million, one hundred twenty-one thousand, two hundred seventy-two".