994198939 has 4 divisors (see below), whose sum is σ = 994294224. Its totient is φ = 994103656.

The previous prime is 994198927. The next prime is 994198957. The reversal of 994198939 is 939891499.

994198939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 939891499 = 599 ⋅1569101.

It is a cyclic number.

It is not a de Polignac number, because 994198939 - 2²¹ = 992101787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (994192939) 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, 29752 + ... + 53605.

It is an arithmetic number, because the mean of its divisors is an integer number (248573556).

Almost surely, 2^994198939 is an apocalyptic number.

994198939 is a deficient number, since it is larger than the sum of its proper divisors (95285).

994198939 is a wasteful number, since it uses less digits than its factorization.

994198939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95284.

The product of its digits is 5668704, while the sum is 61.

The square root of 994198939 is about 31530.9203639856. The cubic root of 994198939 is about 998.0625617572.

The spelling of 994198939 in words is "nine hundred ninety-four million, one hundred ninety-eight thousand, nine hundred thirty-nine".