842471379 has 12 divisors (see below), whose sum is σ = 1217872656. Its totient is φ = 561200112.

The previous prime is 842471369. The next prime is 842471449. The reversal of 842471379 is 973174248.

It is not a de Polignac number, because 842471379 - 2¹⁹ = 841947091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (842471309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25159 + ... + 48144.

It is an arithmetic number, because the mean of its divisors is an integer number (101489388).

Almost surely, 2^842471379 is an apocalyptic number.

842471379 is a deficient number, since it is larger than the sum of its proper divisors (375401277).

842471379 is a wasteful number, since it uses less digits than its factorization.

842471379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74586 (or 74583 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 842471379 is about 29025.3575171780. The cubic root of 842471379 is about 944.4632241766.

The spelling of 842471379 in words is "eight hundred forty-two million, four hundred seventy-one thousand, three hundred seventy-nine".