419997 has 4 divisors (see below), whose sum is σ = 560000.
Its totient is φ = 279996.
The previous prime is 419959. The next prime is 419999. The reversal of 419997 is 799914.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 419997 - 26 = 419933 is a prime.
It is a D-number.
It is a Duffinian number.
It is a plaindrome in base 16.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (419999) 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, 69997 + ... + 70002.
It is an arithmetic number, because the mean of its divisors is an integer number (140000).
2419997 is an apocalyptic number.
It is an amenable number.
419997 is a deficient number, since it is larger than the sum of its proper divisors (140003).
419997 is a wasteful number, since it uses less digits than its factorization.
419997 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 140002.
The product of its digits is 20412, while the sum is 39.
The square root of 419997 is about 648.0717552864.
The cubic root of 419997 is about 74.8885455653.
Note that the first 3 decimals are identical.
The spelling of 419997 in words is "four hundred nineteen thousand, nine hundred ninety-seven".