87179943 has 8 divisors (see below), whose sum is σ = 116300800. Its totient is φ = 58089528.

The previous prime is 87179929. The next prime is 87179947. The reversal of 87179943 is 34997178.

87179943 is nontrivially palindromic in base 14.

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

It is not a de Polignac number, because 87179943 - 2⁶ = 87179879 is a prime.

It is a super-2 number, since 2×87179943² = 15200684922966498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87179892 and 87179901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87179947) 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, 228 + ... + 13206.

It is an arithmetic number, because the mean of its divisors is an integer number (14537600).

Almost surely, 2^87179943 is an apocalyptic number.

87179943 is a deficient number, since it is larger than the sum of its proper divisors (29120857).

87179943 is a wasteful number, since it uses less digits than its factorization.

87179943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15221.

The product of its digits is 381024, while the sum is 48.

The square root of 87179943 is about 9337.0200278247. The cubic root of 87179943 is about 443.4100445143.

The spelling of 87179943 in words is "eighty-seven million, one hundred seventy-nine thousand, nine hundred forty-three".