28883423 has 4 divisors (see below), whose sum is σ = 30139248. Its totient is φ = 27627600.

The previous prime is 28883411. The next prime is 28883429. The reversal of 28883423 is 32438882.

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

It is not a de Polignac number, because 28883423 - 2¹² = 28879327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28883429) 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 3 ways as a sum of consecutive naturals, for example, 627878 + ... + 627923.

It is an arithmetic number, because the mean of its divisors is an integer number (7534812).

Almost surely, 2^28883423 is an apocalyptic number.

28883423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28883423 is a deficient number, since it is larger than the sum of its proper divisors (1255825).

28883423 is a wasteful number, since it uses less digits than its factorization.

28883423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255824.

The product of its digits is 73728, while the sum is 38.

The square root of 28883423 is about 5374.3300047541. The cubic root of 28883423 is about 306.8194498361.

The spelling of 28883423 in words is "twenty-eight million, eight hundred eighty-three thousand, four hundred twenty-three".