423663895 has 16 divisors (see below), whose sum is σ = 518595552. Its totient is φ = 332190720.

The previous prime is 423663853. The next prime is 423663913. The reversal of 423663895 is 598366324.

It is a happy number.

It is not a de Polignac number, because 423663895 - 2²⁷ = 289446167 is a prime.

It is a super-3 number, since 3×423663895³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55935 + ... + 63055.

It is an arithmetic number, because the mean of its divisors is an integer number (32412222).

Almost surely, 2^423663895 is an apocalyptic number.

423663895 is a deficient number, since it is larger than the sum of its proper divisors (94931657).

423663895 is a wasteful number, since it uses less digits than its factorization.

423663895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7362.

The product of its digits is 933120, while the sum is 46.

The square root of 423663895 is about 20583.0973130868. The cubic root of 423663895 is about 751.0585910695.

The spelling of 423663895 in words is "four hundred twenty-three million, six hundred sixty-three thousand, eight hundred ninety-five".