423809089 has 8 divisors (see below), whose sum is σ = 465713568. Its totient is φ = 382467360.

The previous prime is 423809083. The next prime is 423809101. The reversal of 423809089 is 980908324.

It is a happy number.

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

It is not a de Polignac number, because 423809089 - 2⁷ = 423808961 is a prime.

It is a super-2 number, since 2×423809089² = 359228287838019842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423809083) 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, 139107 + ... + 142120.

It is an arithmetic number, because the mean of its divisors is an integer number (58214196).

Almost surely, 2^423809089 is an apocalyptic number.

It is an amenable number.

423809089 is a deficient number, since it is larger than the sum of its proper divisors (41904479).

423809089 is a wasteful number, since it uses less digits than its factorization.

423809089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281375.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 423809089 is about 20586.6240311519. The cubic root of 423809089 is about 751.1443797866.

The spelling of 423809089 in words is "four hundred twenty-three million, eight hundred nine thousand, eighty-nine".