28442763 has 6 divisors (see below), whose sum is σ = 41084004. Its totient is φ = 18961836.

The previous prime is 28442749. The next prime is 28442797. The reversal of 28442763 is 36724482.

It is not a de Polignac number, because 28442763 - 2⁵ = 28442731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28442723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1580145 + ... + 1580162.

It is an arithmetic number, because the mean of its divisors is an integer number (6847334).

Almost surely, 2^28442763 is an apocalyptic number.

28442763 is a deficient number, since it is larger than the sum of its proper divisors (12641241).

28442763 is a wasteful number, since it uses less digits than its factorization.

28442763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160313 (or 3160310 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 28442763 is about 5333.1756955870. The cubic root of 28442763 is about 305.2511163121.

The spelling of 28442763 in words is "twenty-eight million, four hundred forty-two thousand, seven hundred sixty-three".