27447972 has 24 divisors (see below), whose sum is σ = 64317792. Its totient is φ = 9110400.

The previous prime is 27447971. The next prime is 27448019. The reversal of 27447972 is 27974472.

It is not an unprimeable number, because it can be changed into a prime (27447971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854 + ... + 7637.

It is an arithmetic number, because the mean of its divisors is an integer number (2679908).

Almost surely, 2^27447972 is an apocalyptic number.

It is an amenable number.

27447972 is an abundant number, since it is smaller than the sum of its proper divisors (36869820).

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

27447972 is a wasteful number, since it uses less digits than its factorization.

27447972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9739 (or 9737 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The square root of 27447972 is about 5239.0812171601. The cubic root of 27447972 is about 301.6500632207.

The spelling of 27447972 in words is "twenty-seven million, four hundred forty-seven thousand, nine hundred seventy-two".