28999339393 has 8 divisors (see below), whose sum is σ = 29715982560. Its totient is φ = 28290200640.

The previous prime is 28999339367. The next prime is 28999339403. The reversal of 28999339393 is 39393399982.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28999339393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28999339093) 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, 1868280 + ... + 1883737.

It is an arithmetic number, because the mean of its divisors is an integer number (3714497820).

Almost surely, 2^28999339393 is an apocalyptic number.

It is an amenable number.

28999339393 is a deficient number, since it is larger than the sum of its proper divisors (716643167).

28999339393 is a wasteful number, since it uses less digits than its factorization.

28999339393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752207.

The product of its digits is 76527504, while the sum is 67.

The spelling of 28999339393 in words is "twenty-eight billion, nine hundred ninety-nine million, three hundred thirty-nine thousand, three hundred ninety-three".