28093235 has 16 divisors (see below), whose sum is σ = 35389440. Its totient is φ = 21368160.

The previous prime is 28093211. The next prime is 28093243. The reversal of 28093235 is 53239082.

It is not a de Polignac number, because 28093235 - 2²⁰ = 27044659 is a prime.

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, 21326 + ... + 22604.

It is an arithmetic number, because the mean of its divisors is an integer number (2211840).

Almost surely, 2^28093235 is an apocalyptic number.

28093235 is a deficient number, since it is larger than the sum of its proper divisors (7296205).

28093235 is a wasteful number, since it uses less digits than its factorization.

28093235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 28093235 is about 5300.3051798929. The cubic root of 28093235 is about 303.9955670810.

The spelling of 28093235 in words is "twenty-eight million, ninety-three thousand, two hundred thirty-five".