28657383 has 4 divisors (see below), whose sum is σ = 38209848. Its totient is φ = 19104920.

The previous prime is 28657331. The next prime is 28657439. The reversal of 28657383 is 38375682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28657383 - 2¹⁶ = 28591847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28657283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4776228 + ... + 4776233.

It is an arithmetic number, because the mean of its divisors is an integer number (9552462).

Almost surely, 2^28657383 is an apocalyptic number.

28657383 is a deficient number, since it is larger than the sum of its proper divisors (9552465).

28657383 is an equidigital number, since it uses as much as digits as its factorization.

28657383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9552464.

The product of its digits is 241920, while the sum is 42.

The square root of 28657383 is about 5353.2591007722. The cubic root of 28657383 is about 306.0169690278.

The spelling of 28657383 in words is "twenty-eight million, six hundred fifty-seven thousand, three hundred eighty-three".