999038 has 4 divisors (see below), whose sum is σ = 1498560. Its totient is φ = 499518.

The previous prime is 999029. The next prime is 999043. The reversal of 999038 is 830999.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 998992 and 999010.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 999038.

It is an unprimeable number.

999038 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249758 + ... + 249761.

It is an arithmetic number, because the mean of its divisors is an integer number (374640).

2⁹⁹⁹⁰³⁸ is an apocalyptic number.

999038 is a deficient number, since it is larger than the sum of its proper divisors (499522).

999038 is a wasteful number, since it uses less digits than its factorization.

999038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499521.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 999038 is about 999.5188842638. The cubic root of 999038 is about 99.9679230451.

The spelling of 999038 in words is "nine hundred ninety-nine thousand, thirty-eight".