28871206 has 16 divisors (see below), whose sum is σ = 53301024. Its totient is φ = 11421504.

The previous prime is 28871197. The next prime is 28871231. The reversal of 28871206 is 60217882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79135 + ... + 79498.

It is an arithmetic number, because the mean of its divisors is an integer number (3331314).

Almost surely, 2^28871206 is an apocalyptic number.

28871206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28871206 is a deficient number, since it is larger than the sum of its proper divisors (24429818).

28871206 is a wasteful number, since it uses less digits than its factorization.

28871206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158655.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 28871206 is about 5373.1932777446. The cubic root of 28871206 is about 306.7761846289.

The spelling of 28871206 in words is "twenty-eight million, eight hundred seventy-one thousand, two hundred six".