423703221 has 8 divisors (see below), whose sum is σ = 572894784. Its totient is φ = 278490240.

The previous prime is 423703219. The next prime is 423703237. The reversal of 423703221 is 122307324.

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

It is not a de Polignac number, because 423703221 - 2¹ = 423703219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423703191 and 423703200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423703271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994396 + ... + 994821.

It is an arithmetic number, because the mean of its divisors is an integer number (71611848).

Almost surely, 2^423703221 is an apocalyptic number.

It is an amenable number.

423703221 is a deficient number, since it is larger than the sum of its proper divisors (149191563).

423703221 is a wasteful number, since it uses less digits than its factorization.

423703221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989291.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 423703221 is about 20584.0525893226. The cubic root of 423703221 is about 751.0818289999.

The spelling of 423703221 in words is "four hundred twenty-three million, seven hundred three thousand, two hundred twenty-one".