27967944 has 32 divisors (see below), whose sum is σ = 70967520. Its totient is φ = 9182976.

The previous prime is 27967847. The next prime is 27967949. The reversal of 27967944 is 44976972.

It is a junction number, because it is equal to n+sod(n) for n = 27967893 and 27967902.

It is not an unprimeable number, because it can be changed into a prime (27967949) 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, 7089 + ... + 10304.

It is an arithmetic number, because the mean of its divisors is an integer number (2217735).

Almost surely, 2^27967944 is an apocalyptic number.

27967944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27967944 is an abundant number, since it is smaller than the sum of its proper divisors (42999576).

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

27967944 is a wasteful number, since it uses less digits than its factorization.

27967944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17469 (or 17465 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 27967944 is about 5288.4727474007. The cubic root of 27967944 is about 303.5429709175.

Subtracting 27967944 from its reverse (44976972), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 27967944 in words is "twenty-seven million, nine hundred sixty-seven thousand, nine hundred forty-four".