994459 has 4 divisors (see below), whose sum is σ = 998280. Its totient is φ = 990640.

The previous prime is 994457. The next prime is 994471. The reversal of 994459 is 954499.

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

It is a cyclic number.

It is not a de Polignac number, because 994459 - 2¹ = 994457 is a prime.

It is a super-3 number, since 3×994459³ = 2950406813758333737, which contains 333 as substring.

It is a Duffinian number.

994459 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994453) 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, 1489 + ... + 2050.

It is an arithmetic number, because the mean of its divisors is an integer number (249570).

2⁹⁹⁴⁴⁵⁹ is an apocalyptic number.

994459 is a deficient number, since it is larger than the sum of its proper divisors (3821).

994459 is a wasteful number, since it uses less digits than its factorization.

994459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820.

The product of its digits is 58320, while the sum is 40.

The square root of 994459 is about 997.2256514952. The cubic root of 994459 is about 99.8149578051.

Adding to 994459 its sum of digits (40), we get a palindrome (994499).

The spelling of 994459 in words is "nine hundred ninety-four thousand, four hundred fifty-nine".