27143972 has 24 divisors (see below), whose sum is σ = 49244160. Its totient is φ = 13078080.

The previous prime is 27143969. The next prime is 27143981. The reversal of 27143972 is 27934172.

It is a super-3 number, since 3×27143972³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56429 + ... + 56907.

It is an arithmetic number, because the mean of its divisors is an integer number (2051840).

Almost surely, 2^27143972 is an apocalyptic number.

It is an amenable number.

27143972 is a deficient number, since it is larger than the sum of its proper divisors (22100188).

27143972 is a wasteful number, since it uses less digits than its factorization.

27143972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 969 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 27143972 is about 5209.9877159164. The cubic root of 27143972 is about 300.5322846479.

The spelling of 27143972 in words is "twenty-seven million, one hundred forty-three thousand, nine hundred seventy-two".