28135598 has 8 divisors (see below), whose sum is σ = 42246360. Its totient is φ = 14053480.

The previous prime is 28135573. The next prime is 28135607. The reversal of 28135598 is 89553182.

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

It is a super-2 number, since 2×28135598² = 1583223749635208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4508 + ... + 8751.

It is an arithmetic number, because the mean of its divisors is an integer number (5280795).

Almost surely, 2^28135598 is an apocalyptic number.

28135598 is a deficient number, since it is larger than the sum of its proper divisors (14110762).

28135598 is a wasteful number, since it uses less digits than its factorization.

28135598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14322.

The product of its digits is 86400, while the sum is 41.

The square root of 28135598 is about 5304.2999538111. The cubic root of 28135598 is about 304.1482930124.

The spelling of 28135598 in words is "twenty-eight million, one hundred thirty-five thousand, five hundred ninety-eight".