27751872 has 28 divisors (see below), whose sum is σ = 73427336. Its totient is φ = 9250560.

The previous prime is 27751861. The next prime is 27751883. The reversal of 27751872 is 27815772.

It is an interprime number because it is at equal distance from previous prime (27751861) and next prime (27751883).

It is a self number, because there is not a number n which added to its sum of digits gives 27751872.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 72079 + ... + 72462.

Almost surely, 2^27751872 is an apocalyptic number.

It is an amenable number.

27751872 is an abundant number, since it is smaller than the sum of its proper divisors (45675464).

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

27751872 is a wasteful number, since it uses less digits than its factorization.

27751872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144556 (or 144546 counting only the distinct ones).

The product of its digits is 54880, while the sum is 39.

The square root of 27751872 is about 5268.0045558067. The cubic root of 27751872 is about 302.7592550113.

The spelling of 27751872 in words is "twenty-seven million, seven hundred fifty-one thousand, eight hundred seventy-two".