999728675 has 12 divisors (see below), whose sum is σ = 1352360616. Its totient is φ = 727075200.

The previous prime is 999728669. The next prime is 999728677. The reversal of 999728675 is 576827999.

It is not a de Polignac number, because 999728675 - 2⁴ = 999728659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999728677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1817414 + ... + 1817963.

It is an arithmetic number, because the mean of its divisors is an integer number (112696718).

Almost surely, 2^999728675 is an apocalyptic number.

999728675 is a deficient number, since it is larger than the sum of its proper divisors (352631941).

999728675 is a wasteful number, since it uses less digits than its factorization.

999728675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635398 (or 3635393 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 62.

The square root of 999728675 is about 31618.4862857158. The cubic root of 999728675 is about 999.9095501524.

The spelling of 999728675 in words is "nine hundred ninety-nine million, seven hundred twenty-eight thousand, six hundred seventy-five".