28769356 has 24 divisors (see below), whose sum is σ = 62770176. Its totient is φ = 11208720.

The previous prime is 28769329. The next prime is 28769357. The reversal of 28769356 is 65396782.

It is not an unprimeable number, because it can be changed into a prime (28769357) 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, 46396 + ... + 47011.

It is an arithmetic number, because the mean of its divisors is an integer number (2615424).

Almost surely, 2^28769356 is an apocalyptic number.

It is an amenable number.

28769356 is an abundant number, since it is smaller than the sum of its proper divisors (34000820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28769356 is a wasteful number, since it uses less digits than its factorization.

28769356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93429 (or 93427 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 28769356 is about 5363.7072999932. The cubic root of 28769356 is about 306.4150177725.

The spelling of 28769356 in words is "twenty-eight million, seven hundred sixty-nine thousand, three hundred fifty-six".