423419709 has 4 divisors (see below), whose sum is σ = 564559616. Its totient is φ = 282279804.

The previous prime is 423419653. The next prime is 423419747. The reversal of 423419709 is 907914324.

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 not a de Polignac number, because 423419709 - 2¹³ = 423411517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423419779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70569949 + ... + 70569954.

It is an arithmetic number, because the mean of its divisors is an integer number (141139904).

Almost surely, 2^423419709 is an apocalyptic number.

It is an amenable number.

423419709 is a deficient number, since it is larger than the sum of its proper divisors (141139907).

423419709 is a wasteful number, since it uses less digits than its factorization.

423419709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141139906.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 423419709 is about 20577.1647463882. The cubic root of 423419709 is about 750.9142681433.

The spelling of 423419709 in words is "four hundred twenty-three million, four hundred nineteen thousand, seven hundred nine".