28883001 has 16 divisors (see below), whose sum is σ = 44912000. Its totient is φ = 16503984.

The previous prime is 28882993. The next prime is 28883003. The reversal of 28883001 is 10038882.

It is not a de Polignac number, because 28883001 - 2³ = 28882993 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28883001.

It is not an unprimeable number, because it can be changed into a prime (28883003) 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 15 ways as a sum of consecutive naturals, for example, 13006 + ... + 15063.

It is an arithmetic number, because the mean of its divisors is an integer number (2807000).

Almost surely, 2^28883001 is an apocalyptic number.

28883001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28883001 is a deficient number, since it is larger than the sum of its proper divisors (16028999).

28883001 is an equidigital number, since it uses as much as digits as its factorization.

28883001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28093 (or 28079 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 28883001 is about 5374.2907439029. The cubic root of 28883001 is about 306.8179555714.

The spelling of 28883001 in words is "twenty-eight million, eight hundred eighty-three thousand, one".