417343621 has 4 divisors (see below), whose sum is σ = 417394432. Its totient is φ = 417292812.

The previous prime is 417343613. The next prime is 417343637. The reversal of 417343621 is 126343714.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 417343621 - 2³ = 417343613 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 (417343021) 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, 9951 + ... + 30556.

It is an arithmetic number, because the mean of its divisors is an integer number (104348608).

Almost surely, 2^417343621 is an apocalyptic number.

It is an amenable number.

417343621 is a deficient number, since it is larger than the sum of its proper divisors (50811).

417343621 is a wasteful number, since it uses less digits than its factorization.

417343621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50810.

The product of its digits is 12096, while the sum is 31.

The square root of 417343621 is about 20428.9897204928. The cubic root of 417343621 is about 747.3050664128.

The spelling of 417343621 in words is "four hundred seventeen million, three hundred forty-three thousand, six hundred twenty-one".