999066393 has 80 divisors (see below), whose sum is σ = 1674254736. Its totient is φ = 589731840.

The previous prime is 999066389. The next prime is 999066403. The reversal of 999066393 is 393660999.

999066393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 431102169 + 567964224 = 20763^2 + 23832^2 .

It is not a de Polignac number, because 999066393 - 2² = 999066389 is a prime.

It is not an unprimeable number, because it can be changed into a prime (999066373) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3151471 + ... + 3151787.

Almost surely, 2^999066393 is an apocalyptic number.

It is an amenable number.

999066393 is a deficient number, since it is larger than the sum of its proper divisors (675188343).

999066393 is a wasteful number, since it uses less digits than its factorization.

999066393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 2125764, while the sum is 54.

The square root of 999066393 is about 31608.0115318886. The cubic root of 999066393 is about 999.6887007695.

The spelling of 999066393 in words is "nine hundred ninety-nine million, sixty-six thousand, three hundred ninety-three".