28500782 has 8 divisors (see below), whose sum is σ = 42780096. Its totient is φ = 14240752.

The previous prime is 28500763. The next prime is 28500827. The reversal of 28500782 is 28700582.

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

It is a super-2 number, since 2×28500782² = 1624589149223048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263 + ... + 7554.

It is an arithmetic number, because the mean of its divisors is an integer number (5347512).

Almost surely, 2^28500782 is an apocalyptic number.

28500782 is a deficient number, since it is larger than the sum of its proper divisors (14279314).

28500782 is a wasteful number, since it uses less digits than its factorization.

28500782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9642.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 28500782 is about 5338.6123665237. The cubic root of 28500782 is about 305.4585309478.

The spelling of 28500782 in words is "twenty-eight million, five hundred thousand, seven hundred eighty-two".