28334686 has 4 divisors (see below), whose sum is σ = 42502032. Its totient is φ = 14167342.

The previous prime is 28334671. The next prime is 28334729. The reversal of 28334686 is 68643382.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 7083670 + ... + 7083673.

It is an arithmetic number, because the mean of its divisors is an integer number (10625508).

Almost surely, 2^28334686 is an apocalyptic number.

28334686 is a deficient number, since it is larger than the sum of its proper divisors (14167346).

28334686 is a wasteful number, since it uses less digits than its factorization.

28334686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14167345.

The product of its digits is 165888, while the sum is 40.

The square root of 28334686 is about 5323.0335336160. The cubic root of 28334686 is about 304.8639938265.

It can be divided in two parts, 283 and 34686, that added together give a square (34969 = 187²).

The spelling of 28334686 in words is "twenty-eight million, three hundred thirty-four thousand, six hundred eighty-six".