28716699 has 32 divisors (see below), whose sum is σ = 44432640. Its totient is φ = 16329600.

The previous prime is 28716697. The next prime is 28716739. The reversal of 28716699 is 99661782.

It is not a de Polignac number, because 28716699 - 2¹ = 28716697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28716691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35004 + ... + 35814.

It is an arithmetic number, because the mean of its divisors is an integer number (1388520).

Almost surely, 2^28716699 is an apocalyptic number.

28716699 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

28716699 is a deficient number, since it is larger than the sum of its proper divisors (15715941).

28716699 is a wasteful number, since it uses less digits than its factorization.

28716699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891.

The product of its digits is 326592, while the sum is 48.

The square root of 28716699 is about 5358.7964133749. The cubic root of 28716699 is about 306.2279582081.

The spelling of 28716699 in words is "twenty-eight million, seven hundred sixteen thousand, six hundred ninety-nine".