28673782 has 16 divisors (see below), whose sum is σ = 44184672. Its totient is φ = 13950720.

The previous prime is 28673773. The next prime is 28673783. The reversal of 28673782 is 28737682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28673783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10623 + ... + 13045.

It is an arithmetic number, because the mean of its divisors is an integer number (2761542).

Almost surely, 2^28673782 is an apocalyptic number.

28673782 is a deficient number, since it is larger than the sum of its proper divisors (15510890).

28673782 is a wasteful number, since it uses less digits than its factorization.

28673782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583.

The product of its digits is 225792, while the sum is 43.

The square root of 28673782 is about 5354.7905654657. The cubic root of 28673782 is about 306.0753299667.

The spelling of 28673782 in words is "twenty-eight million, six hundred seventy-three thousand, seven hundred eighty-two".