27882890 has 32 divisors (see below), whose sum is σ = 60735744. Its totient is φ = 8997120.

The previous prime is 27882889. The next prime is 27882893. The reversal of 27882890 is 9828872.

It is not an unprimeable number, because it can be changed into a prime (27882893) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10526 + ... + 12905.

It is an arithmetic number, because the mean of its divisors is an integer number (1897992).

Almost surely, 2^27882890 is an apocalyptic number.

27882890 is an abundant number, since it is smaller than the sum of its proper divisors (32852854).

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

27882890 is a wasteful number, since it uses less digits than its factorization.

27882890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23462.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 27882890 is about 5280.4251722754. The cubic root of 27882890 is about 303.2349544778.

The spelling of 27882890 in words is "twenty-seven million, eight hundred eighty-two thousand, eight hundred ninety".