28785694 has 16 divisors (see below), whose sum is σ = 49417056. Its totient is φ = 12319200.

The previous prime is 28785689. The next prime is 28785721. The reversal of 28785694 is 49658782.

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, 15664 + ... + 17404.

It is an arithmetic number, because the mean of its divisors is an integer number (3088566).

Almost surely, 2^28785694 is an apocalyptic number.

28785694 is a deficient number, since it is larger than the sum of its proper divisors (20631362).

28785694 is a wasteful number, since it uses less digits than its factorization.

28785694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931.

The product of its digits is 967680, while the sum is 49.

The square root of 28785694 is about 5365.2300975820. The cubic root of 28785694 is about 306.4730107424.

The spelling of 28785694 in words is "twenty-eight million, seven hundred eighty-five thousand, six hundred ninety-four".