417020623 has 4 divisors (see below), whose sum is σ = 420918120. Its totient is φ = 413123128.

The previous prime is 417020581. The next prime is 417020627. The reversal of 417020623 is 326020714.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326020714 = 2 ⋅163010357.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-417020623 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 (417020627) 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, 1948588 + ... + 1948801.

It is an arithmetic number, because the mean of its divisors is an integer number (105229530).

Almost surely, 2^417020623 is an apocalyptic number.

417020623 is a deficient number, since it is larger than the sum of its proper divisors (3897497).

417020623 is a wasteful number, since it uses less digits than its factorization.

417020623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897496.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 417020623 is about 20421.0828067466. The cubic root of 417020623 is about 747.1122274451.

Subtracting from 417020623 its reverse (326020714), we obtain a palindrome (90999909).

The spelling of 417020623 in words is "four hundred seventeen million, twenty thousand, six hundred twenty-three".