999828727 has 4 divisors (see below), whose sum is σ = 1000177936. Its totient is φ = 999479520.

The previous prime is 999828677. The next prime is 999828757. The reversal of 999828727 is 727828999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 999828727 - 2¹¹ = 999826679 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 (999828757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170274 + ... + 176047.

It is an arithmetic number, because the mean of its divisors is an integer number (250044484).

It is a Poulet number, since it divides 2^999828726-1.

Almost surely, 2^999828727 is an apocalyptic number.

999828727 is a deficient number, since it is larger than the sum of its proper divisors (349209).

999828727 is a wasteful number, since it uses less digits than its factorization.

999828727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349208.

The product of its digits is 9144576, while the sum is 61.

The square root of 999828727 is about 31620.0684218109. The cubic root of 999828727 is about 999.9429057403.

The spelling of 999828727 in words is "nine hundred ninety-nine million, eight hundred twenty-eight thousand, seven hundred twenty-seven".