28936685 has 8 divisors (see below), whose sum is σ = 34805760. Its totient is φ = 23094864.

The previous prime is 28936643. The next prime is 28936709. The reversal of 28936685 is 58663982.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28936685 - 2¹⁰ = 28935661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4397 + ... + 8786.

It is an arithmetic number, because the mean of its divisors is an integer number (4350720).

Almost surely, 2^28936685 is an apocalyptic number.

It is an amenable number.

28936685 is a deficient number, since it is larger than the sum of its proper divisors (5869075).

28936685 is a wasteful number, since it uses less digits than its factorization.

28936685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13627.

The product of its digits is 622080, while the sum is 47.

The square root of 28936685 is about 5379.2829447799. The cubic root of 28936685 is about 307.0079291455.

The spelling of 28936685 in words is "twenty-eight million, nine hundred thirty-six thousand, six hundred eighty-five".