28852069 has 4 divisors (see below), whose sum is σ = 29555820. Its totient is φ = 28148320.

The previous prime is 28852049. The next prime is 28852073. The reversal of 28852069 is 96025882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3751969 + 25100100 = 1937^2 + 5010^2 .

It is a cyclic number.

It is not a de Polignac number, because 28852069 - 2¹¹ = 28850021 is a prime.

It is a super-3 number, since 3×28852069³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28852039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351814 + ... + 351895.

It is an arithmetic number, because the mean of its divisors is an integer number (7388955).

Almost surely, 2^28852069 is an apocalyptic number.

It is an amenable number.

28852069 is a deficient number, since it is larger than the sum of its proper divisors (703751).

28852069 is an equidigital number, since it uses as much as digits as its factorization.

28852069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703750.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 28852069 is about 5371.4121979234. The cubic root of 28852069 is about 306.7083884372.

The spelling of 28852069 in words is "twenty-eight million, eight hundred fifty-two thousand, sixty-nine".