423134899 has 4 divisors (see below), whose sum is σ = 461601720. Its totient is φ = 384668080.

The previous prime is 423134893. The next prime is 423134909. The reversal of 423134899 is 998431324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423134899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423134893) 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, 19233394 + ... + 19233415.

It is an arithmetic number, because the mean of its divisors is an integer number (115400430).

Almost surely, 2^423134899 is an apocalyptic number.

423134899 is a deficient number, since it is larger than the sum of its proper divisors (38466821).

423134899 is a wasteful number, since it uses less digits than its factorization.

423134899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38466820.

The product of its digits is 186624, while the sum is 43.

The square root of 423134899 is about 20570.2430466925. The cubic root of 423134899 is about 750.7458648165.

The spelling of 423134899 in words is "four hundred twenty-three million, one hundred thirty-four thousand, eight hundred ninety-nine".