87419 has 8 divisors (see below), whose sum is σ = 95040. Its totient is φ = 80136.

The previous prime is 87407. The next prime is 87421. The reversal of 87419 is 91478.

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 87419 - 2⁴ = 87403 is a prime.

It is a super-2 number, since 2×87419² = 15284163122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 87391 and 87400.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87419.

It is not an unprimeable number, because it can be changed into a prime (87119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764 + ... + 870.

It is an arithmetic number, because the mean of its divisors is an integer number (11880).

2⁸⁷⁴¹⁹ is an apocalyptic number.

87419 is a deficient number, since it is larger than the sum of its proper divisors (7621).

87419 is a wasteful number, since it uses less digits than its factorization.

87419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169.

The product of its digits is 2016, while the sum is 29.

The square root of 87419 is about 295.6670424650. The cubic root of 87419 is about 44.3814967675.

The spelling of 87419 in words is "eighty-seven thousand, four hundred nineteen".