28900814 has 8 divisors (see below), whose sum is σ = 43408008. Its totient is φ = 14431480.

The previous prime is 28900801. The next prime is 28900829. The reversal of 28900814 is 41800982.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7472 + ... + 10659.

It is an arithmetic number, because the mean of its divisors is an integer number (5426001).

Almost surely, 2^28900814 is an apocalyptic number.

28900814 is a deficient number, since it is larger than the sum of its proper divisors (14507194).

28900814 is a wasteful number, since it uses less digits than its factorization.

28900814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18930.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 28900814 is about 5375.9477304007. The cubic root of 28900814 is about 306.8810171750.

The spelling of 28900814 in words is "twenty-eight million, nine hundred thousand, eight hundred fourteen".