994311009 has 6 divisors (see below), whose sum is σ = 1436227026. Its totient is φ = 662874000.

The previous prime is 994310959. The next prime is 994311083. The reversal of 994311009 is 900113499.

It can be written as a sum of positive squares in only one way, i.e., 992061009 + 2250000 = 31497^2 + 1500^2 .

It is not a de Polignac number, because 994311009 - 2⁹ = 994310497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (994311509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55239492 + ... + 55239509.

It is an arithmetic number, because the mean of its divisors is an integer number (239371171).

Almost surely, 2^994311009 is an apocalyptic number.

It is an amenable number.

994311009 is a deficient number, since it is larger than the sum of its proper divisors (441916017).

994311009 is a wasteful number, since it uses less digits than its factorization.

994311009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110479007 (or 110479004 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 994311009 is about 31532.6974583527. The cubic root of 994311009 is about 998.1000621891.

The spelling of 994311009 in words is "nine hundred ninety-four million, three hundred eleven thousand, nine".