417421 has 4 divisors (see below), whose sum is σ = 427644. Its totient is φ = 407200.

The previous prime is 417419. The next prime is 417437. The reversal of 417421 is 124714.

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

It can be written as a sum of positive squares in 2 ways, for example, as 114921 + 302500 = 339^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 417421 - 2¹ = 417419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417451) 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 3 ways as a sum of consecutive naturals, for example, 5050 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (106911).

2⁴¹⁷⁴²¹ is an apocalyptic number.

417421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

417421 is a deficient number, since it is larger than the sum of its proper divisors (10223).

417421 is a wasteful number, since it uses less digits than its factorization.

417421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222.

The product of its digits is 224, while the sum is 19.

The square root of 417421 is about 646.0812642385. The cubic root of 417421 is about 74.7351249096.

It can be divided in two parts, 417 and 421, that added together give a palindrome (838).

The spelling of 417421 in words is "four hundred seventeen thousand, four hundred twenty-one", and thus it is an iban number.