28073782 has 16 divisors (see below), whose sum is σ = 46807632. Its totient is φ = 12519520.

The previous prime is 28073767. The next prime is 28073789. The reversal of 28073782 is 28737082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28073789) 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, 10873 + ... + 13204.

It is an arithmetic number, because the mean of its divisors is an integer number (2925477).

Almost surely, 2^28073782 is an apocalyptic number.

28073782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28073782 is a deficient number, since it is larger than the sum of its proper divisors (18733850).

28073782 is a wasteful number, since it uses less digits than its factorization.

28073782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24143.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 28073782 is about 5298.4697790966. The cubic root of 28073782 is about 303.9253842150.

The spelling of 28073782 in words is "twenty-eight million, seventy-three thousand, seven hundred eighty-two".