28368069 has 8 divisors (see below), whose sum is σ = 39044352. Its totient is φ = 18301920.

The previous prime is 28368037. The next prime is 28368077. The reversal of 28368069 is 96086382.

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

It is not a de Polignac number, because 28368069 - 2⁵ = 28368037 is a prime.

It is a super-2 number, since 2×28368069² = 1609494677577522, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28368069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28368029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152424 + ... + 152609.

It is an arithmetic number, because the mean of its divisors is an integer number (4880544).

Almost surely, 2^28368069 is an apocalyptic number.

It is an amenable number.

28368069 is a deficient number, since it is larger than the sum of its proper divisors (10676283).

28368069 is a wasteful number, since it uses less digits than its factorization.

28368069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305067.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 28368069 is about 5326.1683225373. The cubic root of 28368069 is about 304.9836737655.

The spelling of 28368069 in words is "twenty-eight million, three hundred sixty-eight thousand, sixty-nine".