28059269 has 16 divisors (see below), whose sum is σ = 33360000. Its totient is φ = 23091264.

The previous prime is 28059259. The next prime is 28059277. The reversal of 28059269 is 96295082.

It is not a de Polignac number, because 28059269 - 2¹⁶ = 27993733 is a prime.

It is a super-2 number, since 2×28059269² = 1574645153628722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28059259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55982 + ... + 56480.

It is an arithmetic number, because the mean of its divisors is an integer number (2085000).

Almost surely, 2^28059269 is an apocalyptic number.

28059269 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

28059269 is a deficient number, since it is larger than the sum of its proper divisors (5300731).

28059269 is a wasteful number, since it uses less digits than its factorization.

28059269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 28059269 is about 5297.1000556908. The cubic root of 28059269 is about 303.8730028460.

The spelling of 28059269 in words is "twenty-eight million, fifty-nine thousand, two hundred sixty-nine".