42871479 has 16 divisors (see below), whose sum is σ = 65694720. Its totient is φ = 24360480.

The previous prime is 42871469. The next prime is 42871487. The reversal of 42871479 is 97417824.

It is a happy number.

It is not a de Polignac number, because 42871479 - 2⁴ = 42871463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42871479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42871459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1839 + ... + 9440.

It is an arithmetic number, because the mean of its divisors is an integer number (4105920).

Almost surely, 2^42871479 is an apocalyptic number.

42871479 is a deficient number, since it is larger than the sum of its proper divisors (22823241).

42871479 is a wasteful number, since it uses less digits than its factorization.

42871479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11470.

The product of its digits is 112896, while the sum is 42.

The square root of 42871479 is about 6547.6315565248. The cubic root of 42871479 is about 349.9904187853.

The spelling of 42871479 in words is "forty-two million, eight hundred seventy-one thousand, four hundred seventy-nine".