999306799 has 8 divisors (see below), whose sum is σ = 1031600592. Its totient is φ = 967424640.

The previous prime is 999306779. The next prime is 999306811. The reversal of 999306799 is 997603999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 999306799 - 2¹¹ = 999304751 is a prime.

It is a super-2 number, since 2×999306799² = 1997228157055252802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999306719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97972 + ... + 107689.

It is an arithmetic number, because the mean of its divisors is an integer number (128950074).

Almost surely, 2^999306799 is an apocalyptic number.

999306799 is a deficient number, since it is larger than the sum of its proper divisors (32293793).

999306799 is a wasteful number, since it uses less digits than its factorization.

999306799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205817.

The product of its (nonzero) digits is 7440174, while the sum is 61.

The square root of 999306799 is about 31611.8142313914. The cubic root of 999306799 is about 999.7688795875.

The spelling of 999306799 in words is "nine hundred ninety-nine million, three hundred six thousand, seven hundred ninety-nine".