28816782 has 16 divisors (see below), whose sum is σ = 57694032. Its totient is φ = 9595520.

The previous prime is 28816771. The next prime is 28816793. The reversal of 28816782 is 28761882.

It is an interprime number because it is at equal distance from previous prime (28816771) and next prime (28816793).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5782 + ... + 9542.

It is an arithmetic number, because the mean of its divisors is an integer number (3605877).

Almost surely, 2^28816782 is an apocalyptic number.

28816782 is an abundant number, since it is smaller than the sum of its proper divisors (28877250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28816782 is a wasteful number, since it uses less digits than its factorization.

28816782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5043.

The product of its digits is 86016, while the sum is 42.

The square root of 28816782 is about 5368.1264888227. The cubic root of 28816782 is about 306.5832993824.

The spelling of 28816782 in words is "twenty-eight million, eight hundred sixteen thousand, seven hundred eighty-two".