420719323 has 4 divisors (see below), whose sum is σ = 421085368. Its totient is φ = 420353280.

The previous prime is 420719317. The next prime is 420719339. The reversal of 420719323 is 323917024.

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-420719323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420719393) 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, 181293 + ... + 183598.

It is an arithmetic number, because the mean of its divisors is an integer number (105271342).

Almost surely, 2^420719323 is an apocalyptic number.

420719323 is a deficient number, since it is larger than the sum of its proper divisors (366045).

420719323 is a wasteful number, since it uses less digits than its factorization.

420719323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366044.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 420719323 is about 20511.4437083302. The cubic root of 420719323 is about 749.3145280655.

The spelling of 420719323 in words is "four hundred twenty million, seven hundred nineteen thousand, three hundred twenty-three".