28901883 has 4 divisors (see below), whose sum is σ = 38535848. Its totient is φ = 19267920.

The previous prime is 28901881. The next prime is 28901911. The reversal of 28901883 is 38810982.

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

It is not a de Polignac number, because 28901883 - 2¹ = 28901881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28901881) 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, 4816978 + ... + 4816983.

It is an arithmetic number, because the mean of its divisors is an integer number (9633962).

Almost surely, 2^28901883 is an apocalyptic number.

28901883 is a deficient number, since it is larger than the sum of its proper divisors (9633965).

28901883 is an equidigital number, since it uses as much as digits as its factorization.

28901883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9633964.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 28901883 is about 5376.0471538111. The cubic root of 28901883 is about 306.8848008257.

Subtracting 28901883 from its reverse (38810982), we obtain a palindrome (9909099).

The spelling of 28901883 in words is "twenty-eight million, nine hundred one thousand, eight hundred eighty-three".