28886684 has 12 divisors (see below), whose sum is σ = 51244704. Its totient is φ = 14245344.

The previous prime is 28886681. The next prime is 28886687. The reversal of 28886684 is 48668882.

It is an interprime number because it is at equal distance from previous prime (28886681) and next prime (28886687).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28886681) 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 3 ways as a sum of consecutive naturals, for example, 49172 + ... + 49755.

It is an arithmetic number, because the mean of its divisors is an integer number (4270392).

Almost surely, 2^28886684 is an apocalyptic number.

It is an amenable number.

28886684 is a deficient number, since it is larger than the sum of its proper divisors (22358020).

28886684 is a wasteful number, since it uses less digits than its factorization.

28886684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99004 (or 99002 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 50.

The square root of 28886684 is about 5374.6333828458. The cubic root of 28886684 is about 306.8309962581.

The spelling of 28886684 in words is "twenty-eight million, eight hundred eighty-six thousand, six hundred eighty-four".