419987 has 4 divisors (see below), whose sum is σ = 431376. Its totient is φ = 408600.

The previous prime is 419959. The next prime is 419999. The reversal of 419987 is 789914.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 419987 - 2¹⁴ = 403603 is a prime.

It is a pancake number, because a pancake can be divided into 419987 parts by 916 straight cuts.

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 419987.

It is not an unprimeable number, because it can be changed into a prime (419927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5639 + ... + 5712.

It is an arithmetic number, because the mean of its divisors is an integer number (107844).

2⁴¹⁹⁹⁸⁷ is an apocalyptic number.

419987 is a deficient number, since it is larger than the sum of its proper divisors (11389).

419987 is a wasteful number, since it uses less digits than its factorization.

419987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11388.

The product of its digits is 18144, while the sum is 38.

The square root of 419987 is about 648.0640400454. The cubic root of 419987 is about 74.8879512028.

It can be divided in two parts, 4 and 19987, that added together give a palindrome (19991).

The spelling of 419987 in words is "four hundred nineteen thousand, nine hundred eighty-seven".