842923111 has 4 divisors (see below), whose sum is σ = 843180400. Its totient is φ = 842665824.

The previous prime is 842923099. The next prime is 842923157. The reversal of 842923111 is 111329248.

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

It is a cyclic number.

It is not a de Polignac number, because 842923111 - 2¹⁷ = 842792039 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 (842923811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123666 + ... + 130303.

It is an arithmetic number, because the mean of its divisors is an integer number (210795100).

Almost surely, 2^842923111 is an apocalyptic number.

842923111 is a deficient number, since it is larger than the sum of its proper divisors (257289).

842923111 is a wasteful number, since it uses less digits than its factorization.

842923111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257288.

The product of its digits is 3456, while the sum is 31.

The square root of 842923111 is about 29033.1381528074. The cubic root of 842923111 is about 944.6320006436.

The spelling of 842923111 in words is "eight hundred forty-two million, nine hundred twenty-three thousand, one hundred eleven".