421334523 has 6 divisors (see below), whose sum is σ = 608594324. Its totient is φ = 280889676.

The previous prime is 421334521. The next prime is 421334531. The reversal of 421334523 is 325433124.

421334523 is a `hidden beast` number, since 4 + 2 + 133 + 4 + 523 = 666.

It is not a de Polignac number, because 421334523 - 2¹ = 421334521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421334521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23407465 + ... + 23407482.

Almost surely, 2^421334523 is an apocalyptic number.

421334523 is a deficient number, since it is larger than the sum of its proper divisors (187259801).

421334523 is a wasteful number, since it uses less digits than its factorization.

421334523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46814953 (or 46814950 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 421334523 is about 20526.4347366999. The cubic root of 421334523 is about 749.6795804613.

Adding to 421334523 its reverse (325433124), we get a palindrome (746767647).

It can be divided in two parts, 42133 and 4523, that added together give a 6-th power (46656 = 6⁶).

The spelling of 421334523 in words is "four hundred twenty-one million, three hundred thirty-four thousand, five hundred twenty-three".