28834965 has 12 divisors (see below), whose sum is σ = 49980684. Its totient is φ = 15378624.

The previous prime is 28834963. The next prime is 28834979. The reversal of 28834965 is 56943882.

It can be written as a sum of positive squares in 2 ways, for example, as 9492561 + 19342404 = 3081^2 + 4398^2 .

It is not a de Polignac number, because 28834965 - 2¹ = 28834963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 640777 = 28834965 / (2 + 8 + 8 + 3 + 4 + 9 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 28834965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28834963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320344 + ... + 320433.

It is an arithmetic number, because the mean of its divisors is an integer number (4165057).

Almost surely, 2^28834965 is an apocalyptic number.

It is an amenable number.

28834965 is a deficient number, since it is larger than the sum of its proper divisors (21145719).

28834965 is a wasteful number, since it uses less digits than its factorization.

28834965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640788 (or 640785 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 28834965 is about 5369.8198293798. The cubic root of 28834965 is about 306.6477691306.

It can be divided in two parts, 288 and 34965, that added together give a palindrome (35253).

The spelling of 28834965 in words is "twenty-eight million, eight hundred thirty-four thousand, nine hundred sixty-five".