994297839 has 4 divisors (see below), whose sum is σ = 1325730456. Its totient is φ = 662865224.

The previous prime is 994297823. The next prime is 994297841. The reversal of 994297839 is 938792499.

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 994297839 - 2⁴ = 994297823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994297439) 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, 165716304 + ... + 165716309.

It is an arithmetic number, because the mean of its divisors is an integer number (331432614).

Almost surely, 2^994297839 is an apocalyptic number.

994297839 is a deficient number, since it is larger than the sum of its proper divisors (331432617).

994297839 is a wasteful number, since it uses less digits than its factorization.

994297839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331432616.

The product of its digits is 8817984, while the sum is 60.

The square root of 994297839 is about 31532.4886268116. The cubic root of 994297839 is about 998.0956554405.

The spelling of 994297839 in words is "nine hundred ninety-four million, two hundred ninety-seven thousand, eight hundred thirty-nine".