27880043 has 4 divisors (see below), whose sum is σ = 27931560. Its totient is φ = 27828528.

The previous prime is 27880033. The next prime is 27880057. The reversal of 27880043 is 34008872.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27880043 - 2¹⁴ = 27863659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27879991 and 27880009.

It is not an unprimeable number, because it can be changed into a prime (27880003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24938 + ... + 26031.

It is an arithmetic number, because the mean of its divisors is an integer number (6982890).

Almost surely, 2^27880043 is an apocalyptic number.

27880043 is a deficient number, since it is larger than the sum of its proper divisors (51517).

27880043 is an equidigital number, since it uses as much as digits as its factorization.

27880043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51516.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 27880043 is about 5280.1555848289. The cubic root of 27880043 is about 303.2246334613.

The spelling of 27880043 in words is "twenty-seven million, eight hundred eighty thousand, forty-three".