417320645 has 8 divisors (see below), whose sum is σ = 572325504. Its totient is φ = 286162704.

The previous prime is 417320609. The next prime is 417320647. The reversal of 417320645 is 546023714.

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 417320645 - 2²⁰ = 416272069 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 (417320647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5961689 + ... + 5961758.

It is an arithmetic number, because the mean of its divisors is an integer number (71540688).

Almost surely, 2^417320645 is an apocalyptic number.

It is an amenable number.

417320645 is a deficient number, since it is larger than the sum of its proper divisors (155004859).

417320645 is a wasteful number, since it uses less digits than its factorization.

417320645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11923459.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 417320645 is about 20428.4273746170. The cubic root of 417320645 is about 747.2913523768.

The spelling of 417320645 in words is "four hundred seventeen million, three hundred twenty thousand, six hundred forty-five".