423535917 has 16 divisors (see below), whose sum is σ = 649503872. Its totient is φ = 240477120.

The previous prime is 423535867. The next prime is 423535921. The reversal of 423535917 is 719535324.

It is a happy number.

It is not a de Polignac number, because 423535917 - 2²⁸ = 155100461 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 (423535967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60934 + ... + 67527.

It is an arithmetic number, because the mean of its divisors is an integer number (40593992).

Almost surely, 2^423535917 is an apocalyptic number.

It is an amenable number.

423535917 is a deficient number, since it is larger than the sum of its proper divisors (225967955).

423535917 is a wasteful number, since it uses less digits than its factorization.

423535917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128628.

The product of its digits is 113400, while the sum is 39.

The square root of 423535917 is about 20579.9882653028. The cubic root of 423535917 is about 750.9829582723.

The spelling of 423535917 in words is "four hundred twenty-three million, five hundred thirty-five thousand, nine hundred seventeen".