28838379 has 8 divisors (see below), whose sum is σ = 38476800. Its totient is φ = 19212776.

The previous prime is 28838377. The next prime is 28838393. The reversal of 28838379 is 97383882.

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 28838379 - 2¹ = 28838377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28838377) 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, 5194 + ... + 9200.

It is an arithmetic number, because the mean of its divisors is an integer number (4809600).

Almost surely, 2^28838379 is an apocalyptic number.

28838379 is a deficient number, since it is larger than the sum of its proper divisors (9638421).

28838379 is a wasteful number, since it uses less digits than its factorization.

28838379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409.

The product of its digits is 580608, while the sum is 48.

The square root of 28838379 is about 5370.1377077315. The cubic root of 28838379 is about 306.6598708061.

The spelling of 28838379 in words is "twenty-eight million, eight hundred thirty-eight thousand, three hundred seventy-nine".