994289999 has 4 divisors (see below), whose sum is σ = 1052777664. Its totient is φ = 935802336.

The previous prime is 994289957. The next prime is 994290013. The reversal of 994289999 is 999982499.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994289999 is a prime.

It is a super-2 number, since 2×994289999² = 1977225204222840002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994289909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29243807 + ... + 29243840.

It is an arithmetic number, because the mean of its divisors is an integer number (263194416).

Almost surely, 2^994289999 is an apocalyptic number.

994289999 is a deficient number, since it is larger than the sum of its proper divisors (58487665).

994289999 is a wasteful number, since it uses less digits than its factorization.

994289999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58487664.

The product of its digits is 34012224, while the sum is 68.

The square root of 994289999 is about 31532.3643103399. The cubic root of 994289999 is about 998.0930321184.

The spelling of 994289999 in words is "nine hundred ninety-four million, two hundred eighty-nine thousand, nine hundred ninety-nine".