28695830 has 32 divisors (see below), whose sum is σ = 55637280. Its totient is φ = 10616320.

The previous prime is 28695829. The next prime is 28695851. The reversal of 28695830 is 3859682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8600 + ... + 11460.

It is an arithmetic number, because the mean of its divisors is an integer number (1738665).

Almost surely, 2^28695830 is an apocalyptic number.

28695830 is a deficient number, since it is larger than the sum of its proper divisors (26941450).

28695830 is a wasteful number, since it uses less digits than its factorization.

28695830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 28695830 is about 5356.8488871724. The cubic root of 28695830 is about 306.1537595690.

The spelling of 28695830 in words is "twenty-eight million, six hundred ninety-five thousand, eight hundred thirty".