28394782 has 8 divisors (see below), whose sum is σ = 45868536. Its totient is φ = 13105272.

The previous prime is 28394767. The next prime is 28394789. The reversal of 28394782 is 28749382.

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 not an unprimeable number, because it can be changed into a prime (28394789) 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, 546028 + ... + 546079.

It is an arithmetic number, because the mean of its divisors is an integer number (5733567).

Almost surely, 2^28394782 is an apocalyptic number.

28394782 is a deficient number, since it is larger than the sum of its proper divisors (17473754).

28394782 is a wasteful number, since it uses less digits than its factorization.

28394782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092122.

The product of its digits is 193536, while the sum is 43.

The square root of 28394782 is about 5328.6754451740. The cubic root of 28394782 is about 305.0793737699.

The spelling of 28394782 in words is "twenty-eight million, three hundred ninety-four thousand, seven hundred eighty-two".