28796769 has 16 divisors (see below), whose sum is σ = 42974400. Its totient is φ = 19057248.

The previous prime is 28796753. The next prime is 28796771. The reversal of 28796769 is 96769782.

It is not a de Polignac number, because 28796769 - 2⁴ = 28796753 is a prime.

It is a super-2 number, since 2×28796769² = 1658507809678722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28796749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84 + ... + 7589.

It is an arithmetic number, because the mean of its divisors is an integer number (2685900).

Almost surely, 2^28796769 is an apocalyptic number.

It is an amenable number.

28796769 is a deficient number, since it is larger than the sum of its proper divisors (14177631).

28796769 is a wasteful number, since it uses less digits than its factorization.

28796769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7821 (or 7815 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 28796769 is about 5366.2621069046. The cubic root of 28796769 is about 306.5123098168.

The spelling of 28796769 in words is "twenty-eight million, seven hundred ninety-six thousand, seven hundred sixty-nine".