994147847 has 8 divisors (see below), whose sum is σ = 1239457152. Its totient is φ = 774660600.

The previous prime is 994147829. The next prime is 994147909. The reversal of 994147847 is 748741499.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 994147847 - 2⁸ = 994147591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994147247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6455429 + ... + 6455582.

It is an arithmetic number, because the mean of its divisors is an integer number (154932144).

Almost surely, 2^994147847 is an apocalyptic number.

994147847 is a deficient number, since it is larger than the sum of its proper divisors (245309305).

994147847 is a wasteful number, since it uses less digits than its factorization.

994147847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12911029.

The product of its digits is 2032128, while the sum is 53.

The square root of 994147847 is about 31530.1101647298. The cubic root of 994147847 is about 998.0454646137.

It can be divided in two parts, 994 and 147847, that added together give a palindrome (148841).

The spelling of 994147847 in words is "nine hundred ninety-four million, one hundred forty-seven thousand, eight hundred forty-seven".