842864927 has 4 divisors (see below), whose sum is σ = 854736336. Its totient is φ = 830993520.

The previous prime is 842864899. The next prime is 842864929. The reversal of 842864927 is 729468248.

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 842864927 - 2²⁰ = 841816351 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 (842864929) 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, 5935598 + ... + 5935739.

It is an arithmetic number, because the mean of its divisors is an integer number (213684084).

Almost surely, 2^842864927 is an apocalyptic number.

842864927 is a deficient number, since it is larger than the sum of its proper divisors (11871409).

842864927 is a wasteful number, since it uses less digits than its factorization.

842864927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11871408.

The product of its digits is 1548288, while the sum is 50.

The square root of 842864927 is about 29032.1361081130. The cubic root of 842864927 is about 944.6102652752.

The spelling of 842864927 in words is "eight hundred forty-two million, eight hundred sixty-four thousand, nine hundred twenty-seven".