28888882 has 16 divisors (see below), whose sum is σ = 50054112. Its totient is φ = 12358720.

The previous prime is 28888877. The next prime is 28888883.

It is a happy number.

28888882 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (28888883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38248 + ... + 38995.

It is an arithmetic number, because the mean of its divisors is an integer number (3128382).

Almost surely, 2^28888882 is an apocalyptic number.

28888882 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28888882 is a deficient number, since it is larger than the sum of its proper divisors (21165230).

28888882 is a wasteful number, since it uses less digits than its factorization.

28888882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77273.

The product of its digits is 1048576, while the sum is 52.

The square root of 28888882 is about 5374.8378580195. The cubic root of 28888882 is about 306.8387783608.

The spelling of 28888882 in words is "twenty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-two".