28694485 has 8 divisors (see below), whose sum is σ = 35620920. Its totient is φ = 22163904.

The previous prime is 28694467. The next prime is 28694489. The reversal of 28694485 is 58449682.

It can be written as a sum of positive squares in 4 ways, for example, as 6482116 + 22212369 = 2546^2 + 4713^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 28694485 - 2¹⁷ = 28563413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28694489) 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 7 ways as a sum of consecutive naturals, for example, 98802 + ... + 99091.

It is an arithmetic number, because the mean of its divisors is an integer number (4452615).

Almost surely, 2^28694485 is an apocalyptic number.

It is an amenable number.

28694485 is a deficient number, since it is larger than the sum of its proper divisors (6926435).

28694485 is a wasteful number, since it uses less digits than its factorization.

28694485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197927.

The product of its digits is 552960, while the sum is 46.

The square root of 28694485 is about 5356.7233454790. The cubic root of 28694485 is about 306.1489762580.

The spelling of 28694485 in words is "twenty-eight million, six hundred ninety-four thousand, four hundred eighty-five".