42871799 has 8 divisors (see below), whose sum is σ = 43533120. Its totient is φ = 42213600.

The previous prime is 42871781. The next prime is 42871811. The reversal of 42871799 is 99717824.

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 42871799 - 2¹⁶ = 42806263 is a prime.

It is a super-2 number, since 2×42871799² = 3675982298992802, 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 (42871709) 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, 51809 + ... + 52629.

It is an arithmetic number, because the mean of its divisors is an integer number (5441640).

Almost surely, 2^42871799 is an apocalyptic number.

42871799 is a deficient number, since it is larger than the sum of its proper divisors (661321).

42871799 is an equidigital number, since it uses as much as digits as its factorization.

42871799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561.

The product of its digits is 254016, while the sum is 47.

The square root of 42871799 is about 6547.6559927962. The cubic root of 42871799 is about 349.9912895791.

It can be divided in two parts, 428 and 71799, that added together give a palindrome (72227).

The spelling of 42871799 in words is "forty-two million, eight hundred seventy-one thousand, seven hundred ninety-nine".