423003949673 has 4 divisors (see below), whose sum is σ = 423040056960. Its totient is φ = 422967842388.

The previous prime is 423003949609. The next prime is 423003949741. The reversal of 423003949673 is 376949300324.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423003949673 - 2⁶ = 423003949609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423003949603) 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, 18036065 + ... + 18059502.

It is an arithmetic number, because the mean of its divisors is an integer number (105760014240).

Almost surely, 2^423003949673 is an apocalyptic number.

It is an amenable number.

423003949673 is a deficient number, since it is larger than the sum of its proper divisors (36107287).

423003949673 is a wasteful number, since it uses less digits than its factorization.

423003949673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36107286.

The product of its (nonzero) digits is 2939328, while the sum is 50.

The spelling of 423003949673 in words is "four hundred twenty-three billion, three million, nine hundred forty-nine thousand, six hundred seventy-three".