28376999 has 8 divisors (see below), whose sum is σ = 32611488. Its totient is φ = 24187680.

The previous prime is 28376981. The next prime is 28377001. The reversal of 28376999 is 99967382.

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 28376999 - 2²⁰ = 27328423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28376999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28376969) 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, 9932 + ... + 12465.

It is an arithmetic number, because the mean of its divisors is an integer number (4076436).

Almost surely, 2^28376999 is an apocalyptic number.

28376999 is a deficient number, since it is larger than the sum of its proper divisors (4234489).

28376999 is a wasteful number, since it uses less digits than its factorization.

28376999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22585.

The product of its digits is 1469664, while the sum is 53.

The square root of 28376999 is about 5327.0065702982. The cubic root of 28376999 is about 305.0156724008.

The spelling of 28376999 in words is "twenty-eight million, three hundred seventy-six thousand, nine hundred ninety-nine".