28299799 has 16 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 24856000.

The previous prime is 28299793. The next prime is 28299809. The reversal of 28299799 is 99799282.

It is a cyclic number.

It is not a de Polignac number, because 28299799 - 2¹³ = 28291607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28299793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58842 + ... + 59320.

It is an arithmetic number, because the mean of its divisors is an integer number (1995840).

Almost surely, 2^28299799 is an apocalyptic number.

28299799 is a deficient number, since it is larger than the sum of its proper divisors (3633641).

28299799 is a wasteful number, since it uses less digits than its factorization.

28299799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662.

The product of its digits is 1469664, while the sum is 55.

The square root of 28299799 is about 5319.7555394962. The cubic root of 28299799 is about 304.7388214702.

The spelling of 28299799 in words is "twenty-eight million, two hundred ninety-nine thousand, seven hundred ninety-nine".