28969269 has 8 divisors (see below), whose sum is σ = 44143680. Its totient is φ = 16553856.

The previous prime is 28969267. The next prime is 28969273. The reversal of 28969269 is 96296982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28969269 - 2¹ = 28969267 is a prime.

It is a super-2 number, since 2×28969269² = 1678437092788722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (28969267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689724 + ... + 689765.

It is an arithmetic number, because the mean of its divisors is an integer number (5517960).

Almost surely, 2^28969269 is an apocalyptic number.

It is an amenable number.

28969269 is a deficient number, since it is larger than the sum of its proper divisors (15174411).

28969269 is a wasteful number, since it uses less digits than its factorization.

28969269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379499.

The product of its digits is 839808, while the sum is 51.

The square root of 28969269 is about 5382.3107491114. The cubic root of 28969269 is about 307.1231208004.

The spelling of 28969269 in words is "twenty-eight million, nine hundred sixty-nine thousand, two hundred sixty-nine".