994005 has 32 divisors (see below), whose sum is σ = 1824000. Its totient is φ = 513216.

The previous prime is 993997. The next prime is 994013. The reversal of 994005 is 500499.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (993997) and next prime (994013).

It is not a de Polignac number, because 994005 - 2³ = 993997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 994005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4896 + ... + 5094.

It is an arithmetic number, because the mean of its divisors is an integer number (57000).

2⁹⁹⁴⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

994005 is a deficient number, since it is larger than the sum of its proper divisors (829995).

994005 is a wasteful number, since it uses less digits than its factorization.

994005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 994005 is about 996.9979939799. The cubic root of 994005 is about 99.7997659977.

It can be divided in two parts, 99 and 4005, that multiplied together give a triangular number (396495 = T₈₉₀).

The spelling of 994005 in words is "nine hundred ninety-four thousand, five".