28963333 has 4 divisors (see below), whose sum is σ = 33100960. Its totient is φ = 24825708.

The previous prime is 28963321. The next prime is 28963357. The reversal of 28963333 is 33336982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28963333 - 2¹³ = 28955141 is a prime.

It is a Duffinian number.

28963333 is a modest number, since divided by 3333 gives 2896 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 28963292 and 28963301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28963303) 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 3 ways as a sum of consecutive naturals, for example, 2068803 + ... + 2068816.

It is an arithmetic number, because the mean of its divisors is an integer number (8275240).

Almost surely, 2^28963333 is an apocalyptic number.

It is an amenable number.

28963333 is a deficient number, since it is larger than the sum of its proper divisors (4137627).

28963333 is an equidigital number, since it uses as much as digits as its factorization.

28963333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137626.

The product of its digits is 69984, while the sum is 37.

The square root of 28963333 is about 5381.7592848436. The cubic root of 28963333 is about 307.1021421629.

The spelling of 28963333 in words is "twenty-eight million, nine hundred sixty-three thousand, three hundred thirty-three".