842871431 has 8 divisors (see below), whose sum is σ = 870409344. Its totient is φ = 815355360.

The previous prime is 842871427. The next prime is 842871437. The reversal of 842871431 is 134178248.

842871431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 842871431 - 2² = 842871427 is a prime.

It is a super-2 number, since 2×842871431² = 1420864498391975522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842871437) 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, 116681 + ... + 123693.

It is an arithmetic number, because the mean of its divisors is an integer number (108801168).

Almost surely, 2^842871431 is an apocalyptic number.

842871431 is a deficient number, since it is larger than the sum of its proper divisors (27537913).

842871431 is a wasteful number, since it uses less digits than its factorization.

842871431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10921.

The product of its digits is 43008, while the sum is 38.

The square root of 842871431 is about 29032.2481217008. The cubic root of 842871431 is about 944.6126949762.

The spelling of 842871431 in words is "eight hundred forty-two million, eight hundred seventy-one thousand, four hundred thirty-one".