28363837 has 8 divisors (see below), whose sum is σ = 30542400. Its totient is φ = 26241984.

The previous prime is 28363823. The next prime is 28363849. The reversal of 28363837 is 73836382.

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 28363837 - 2¹⁹ = 27839549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28363837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28363817) 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, 13137 + ... + 15142.

It is an arithmetic number, because the mean of its divisors is an integer number (3817800).

Almost surely, 2^28363837 is an apocalyptic number.

It is an amenable number.

28363837 is a deficient number, since it is larger than the sum of its proper divisors (2178563).

28363837 is a wasteful number, since it uses less digits than its factorization.

28363837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28355.

The product of its digits is 145152, while the sum is 40.

The square root of 28363837 is about 5325.7710239927. The cubic root of 28363837 is about 304.9685070054.

The spelling of 28363837 in words is "twenty-eight million, three hundred sixty-three thousand, eight hundred thirty-seven".