994659 has 4 divisors (see below), whose sum is σ = 1326216. Its totient is φ = 663104.

The previous prime is 994657. The next prime is 994663. The reversal of 994659 is 956499.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 956499 = 3 ⋅318833.

It is a cyclic number.

It is not a de Polignac number, because 994659 - 2¹ = 994657 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 994659.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165774 + ... + 165779.

It is an arithmetic number, because the mean of its divisors is an integer number (331554).

2⁹⁹⁴⁶⁵⁹ is an apocalyptic number.

994659 is a deficient number, since it is larger than the sum of its proper divisors (331557).

994659 is a wasteful number, since it uses less digits than its factorization.

994659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331556.

The product of its digits is 87480, while the sum is 42.

The square root of 994659 is about 997.3259246605. The cubic root of 994659 is about 99.8216487641.

It can be divided in two parts, 994 and 659, that added together give a triangular number (1653 = T₅₇).

The spelling of 994659 in words is "nine hundred ninety-four thousand, six hundred fifty-nine".