28064782 has 8 divisors (see below), whose sum is σ = 42129000. Its totient is φ = 14021784.

The previous prime is 28064749. The next prime is 28064789. The reversal of 28064782 is 28746082.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28064789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1432 + ... + 7627.

It is an arithmetic number, because the mean of its divisors is an integer number (5266125).

Almost surely, 2^28064782 is an apocalyptic number.

28064782 is a deficient number, since it is larger than the sum of its proper divisors (14064218).

28064782 is a wasteful number, since it uses less digits than its factorization.

28064782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10610.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 28064782 is about 5297.6204092026. The cubic root of 28064782 is about 303.8929028912.

The spelling of 28064782 in words is "twenty-eight million, sixty-four thousand, seven hundred eighty-two".