994644 has 36 divisors (see below), whose sum is σ = 2874144. Its totient is φ = 284112.

The previous prime is 994621. The next prime is 994657. The reversal of 994644 is 446499.

994644 is a `hidden beast` number, since 9 + 9 + 4 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 994599 and 994608.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1722 + ... + 2225.

2⁹⁹⁴⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

994644 is an abundant number, since it is smaller than the sum of its proper divisors (1879500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

994644 is a wasteful number, since it uses less digits than its factorization.

994644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964 (or 3959 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 994644 is about 997.3184045228. The cubic root of 994644 is about 99.8211469733.

The spelling of 994644 in words is "nine hundred ninety-four thousand, six hundred forty-four".