994001 has 4 divisors (see below), whose sum is σ = 998400. Its totient is φ = 989604.

The previous prime is 993997. The next prime is 994013. The reversal of 994001 is 100499.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 994001 - 2² = 993997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (994051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1841 + ... + 2318.

It is an arithmetic number, because the mean of its divisors is an integer number (249600).

2⁹⁹⁴⁰⁰¹ is an apocalyptic number.

It is an amenable number.

994001 is a deficient number, since it is larger than the sum of its proper divisors (4399).

994001 is a wasteful number, since it uses less digits than its factorization.

994001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 994001 is about 996.9959879558. The cubic root of 994001 is about 99.7996321286.

The spelling of 994001 in words is "nine hundred ninety-four thousand, one".