28699814 has 32 divisors (see below), whose sum is σ = 52786944. Its totient is φ = 11515680.

The previous prime is 28699813. The next prime is 28699843. The reversal of 28699814 is 41899682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28699813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4397 + ... + 8759.

It is an arithmetic number, because the mean of its divisors is an integer number (1649592).

Almost surely, 2^28699814 is an apocalyptic number.

28699814 is a deficient number, since it is larger than the sum of its proper divisors (24087130).

28699814 is a wasteful number, since it uses less digits than its factorization.

28699814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412.

The product of its digits is 248832, while the sum is 47.

The square root of 28699814 is about 5357.2207346720. The cubic root of 28699814 is about 306.1679272504.

The spelling of 28699814 in words is "twenty-eight million, six hundred ninety-nine thousand, eight hundred fourteen".