423995817 has 8 divisors (see below), whose sum is σ = 646088896. Its totient is φ = 242283312.

The previous prime is 423995807. The next prime is 423995833. The reversal of 423995817 is 718599324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423995817 - 2¹¹ = 423993769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423995807) 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, 10095118 + ... + 10095159.

It is an arithmetic number, because the mean of its divisors is an integer number (80761112).

Almost surely, 2^423995817 is an apocalyptic number.

It is an amenable number.

423995817 is a deficient number, since it is larger than the sum of its proper divisors (222093079).

423995817 is a wasteful number, since it uses less digits than its factorization.

423995817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20190287.

The product of its digits is 544320, while the sum is 48.

The square root of 423995817 is about 20591.1587095044. The cubic root of 423995817 is about 751.2546803104.

The spelling of 423995817 in words is "four hundred twenty-three million, nine hundred ninety-five thousand, eight hundred seventeen".