994311871 has 6 divisors (see below), whose sum is σ = 1156648560. Its totient is φ = 852267276.

The previous prime is 994311749. The next prime is 994311881. The reversal of 994311871 is 178113499.

It is not a de Polignac number, because 994311871 - 2¹⁵ = 994279103 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 (994311881) 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, 10145991 + ... + 10146088.

It is an arithmetic number, because the mean of its divisors is an integer number (192774760).

Almost surely, 2^994311871 is an apocalyptic number.

994311871 is a deficient number, since it is larger than the sum of its proper divisors (162336689).

994311871 is a wasteful number, since it uses less digits than its factorization.

994311871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20292093 (or 20292086 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 994311871 is about 31532.7111267014. The cubic root of 994311871 is about 998.1003506173.

The spelling of 994311871 in words is "nine hundred ninety-four million, three hundred eleven thousand, eight hundred seventy-one".