996111871 has 4 divisors (see below), whose sum is σ = 1028244544. Its totient is φ = 963979200.

The previous prime is 996111829. The next prime is 996111881. The reversal of 996111871 is 178111699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178111699 = 8297 ⋅21467.

It is a cyclic number.

It is not a de Polignac number, because 996111871 - 2¹³ = 996103679 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 (996111811) 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, 16066290 + ... + 16066351.

It is an arithmetic number, because the mean of its divisors is an integer number (257061136).

Almost surely, 2^996111871 is an apocalyptic number.

996111871 is a deficient number, since it is larger than the sum of its proper divisors (32132673).

996111871 is a wasteful number, since it uses less digits than its factorization.

996111871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32132672.

The product of its digits is 27216, while the sum is 43.

The square root of 996111871 is about 31561.2400104939. The cubic root of 996111871 is about 998.7022736348.

The spelling of 996111871 in words is "nine hundred ninety-six million, one hundred eleven thousand, eight hundred seventy-one".