876424139 has 4 divisors (see below), whose sum is σ = 878181000. Its totient is φ = 874667280.

The previous prime is 876424121. The next prime is 876424163. The reversal of 876424139 is 931424678.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931424678 = 2 ⋅465712339.

It is a cyclic number.

It is not a de Polignac number, because 876424139 - 2⁸ = 876423883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 876424139.

It is not an unprimeable number, because it can be changed into a prime (876424739) 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 3 ways as a sum of consecutive naturals, for example, 877682 + ... + 878679.

It is an arithmetic number, because the mean of its divisors is an integer number (219545250).

Almost surely, 2^876424139 is an apocalyptic number.

876424139 is a deficient number, since it is larger than the sum of its proper divisors (1756861).

876424139 is a wasteful number, since it uses less digits than its factorization.

876424139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756860.

The product of its digits is 290304, while the sum is 44.

The square root of 876424139 is about 29604.4614712040. The cubic root of 876424139 is about 956.9842205739.

The spelling of 876424139 in words is "eight hundred seventy-six million, four hundred twenty-four thousand, one hundred thirty-nine".