27880748 has 24 divisors (see below), whose sum is σ = 59042592. Its totient is φ = 11245824.

The previous prime is 27880717. The next prime is 27880789. The reversal of 27880748 is 84708872.

It is a happy number.

It is a super-2 number, since 2×27880748² = 1554672218079008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27880699 and 27880708.

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 7 ways as a sum of consecutive naturals, for example, 28811 + ... + 29762.

It is an arithmetic number, because the mean of its divisors is an integer number (2460108).

Almost surely, 2^27880748 is an apocalyptic number.

27880748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27880748 is an abundant number, since it is smaller than the sum of its proper divisors (31161844).

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

27880748 is a wasteful number, since it uses less digits than its factorization.

27880748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58601 (or 58599 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 44.

The square root of 27880748 is about 5280.2223438033. Note that the first 3 decimals coincide. The cubic root of 27880748 is about 303.2271893106.

The spelling of 27880748 in words is "twenty-seven million, eight hundred eighty thousand, seven hundred forty-eight".