28300761 has 6 divisors (see below), whose sum is σ = 40878890. Its totient is φ = 18867168.

The previous prime is 28300739. The next prime is 28300763. The reversal of 28300761 is 16700382.

It can be written as a sum of positive squares in only one way, i.e., 21566736 + 6734025 = 4644^2 + 2595^2 .

It is not a de Polignac number, because 28300761 - 2⁵ = 28300729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28300763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1572256 + ... + 1572273.

Almost surely, 2^28300761 is an apocalyptic number.

It is an amenable number.

28300761 is a deficient number, since it is larger than the sum of its proper divisors (12578129).

28300761 is a wasteful number, since it uses less digits than its factorization.

28300761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144535 (or 3144532 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 28300761 is about 5319.8459564164. The cubic root of 28300761 is about 304.7422744444.

The spelling of 28300761 in words is "twenty-eight million, three hundred thousand, seven hundred sixty-one".