128002799 has 8 divisors (see below), whose sum is σ = 130713600. Its totient is φ = 125318016.

The previous prime is 128002793. The next prime is 128002807. The reversal of 128002799 is 997200821.

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

It is a cyclic number.

It is not a de Polignac number, because 128002799 - 2⁸ = 128002543 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 (128002793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3602 + ... + 16400.

It is an arithmetic number, because the mean of its divisors is an integer number (16339200).

Almost surely, 2^128002799 is an apocalyptic number.

128002799 is a deficient number, since it is larger than the sum of its proper divisors (2710801).

128002799 is a wasteful number, since it uses less digits than its factorization.

128002799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13009.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 128002799 is about 11313.8321978011. The cubic root of 128002799 is about 503.9720933885.

It can be divided in two parts, 12800279 and 9, that multiplied together give a palindrome (115202511).

The spelling of 128002799 in words is "one hundred twenty-eight million, two thousand, seven hundred ninety-nine".