28945383 has 8 divisors (see below), whose sum is σ = 38691696. Its totient is φ = 19248000.

The previous prime is 28945361. The next prime is 28945387. The reversal of 28945383 is 38354982.

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

It is not a de Polignac number, because 28945383 - 2¹⁶ = 28879847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28945387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10828 + ... + 13233.

It is an arithmetic number, because the mean of its divisors is an integer number (4836462).

Almost surely, 2^28945383 is an apocalyptic number.

28945383 is a deficient number, since it is larger than the sum of its proper divisors (9746313).

28945383 is a wasteful number, since it uses less digits than its factorization.

28945383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24465.

The product of its digits is 207360, while the sum is 42.

The square root of 28945383 is about 5380.0913561017. The cubic root of 28945383 is about 307.0386869587.

The spelling of 28945383 in words is "twenty-eight million, nine hundred forty-five thousand, three hundred eighty-three".