994647 has 4 divisors (see below), whose sum is σ = 1326200. Its totient is φ = 663096.

The previous prime is 994621. The next prime is 994657. The reversal of 994647 is 746499.

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

It is not a de Polignac number, because 994647 - 2⁶ = 994583 is a prime.

It is a d-powerful number, because it can be written as 9² + 9⁶ + 6⁷ + 4 + 4⁸ + 7⁶ .

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165772 + ... + 165777.

It is an arithmetic number, because the mean of its divisors is an integer number (331550).

2⁹⁹⁴⁶⁴⁷ is an apocalyptic number.

994647 is a deficient number, since it is larger than the sum of its proper divisors (331553).

994647 is a wasteful number, since it uses less digits than its factorization.

994647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331552.

The product of its digits is 54432, while the sum is 39.

The square root of 994647 is about 997.3199085549. The cubic root of 994647 is about 99.8212473319.

The spelling of 994647 in words is "nine hundred ninety-four thousand, six hundred forty-seven".