28336745 has 8 divisors (see below), whose sum is σ = 34036800. Its totient is φ = 22647600.

The previous prime is 28336691. The next prime is 28336751. The reversal of 28336745 is 54763382.

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

It is not a de Polignac number, because 28336745 - 2⁶ = 28336681 is a prime.

It is a super-2 number, since 2×28336745² = 1605942234390050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28336699 and 28336708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4970 + ... + 9020.

It is an arithmetic number, because the mean of its divisors is an integer number (4254600).

Almost surely, 2^28336745 is an apocalyptic number.

It is an amenable number.

28336745 is a deficient number, since it is larger than the sum of its proper divisors (5700055).

28336745 is a wasteful number, since it uses less digits than its factorization.

28336745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455.

The product of its digits is 120960, while the sum is 38.

The square root of 28336745 is about 5323.2269348582. The cubic root of 28336745 is about 304.8713781770.

The spelling of 28336745 in words is "twenty-eight million, three hundred thirty-six thousand, seven hundred forty-five".