421534329 has 8 divisors (see below), whose sum is σ = 595107360. Its totient is φ = 264492096.

The previous prime is 421534277. The next prime is 421534357. The reversal of 421534329 is 923435124.

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

It is not a de Polignac number, because 421534329 - 2⁸ = 421534073 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 421534329.

It is not an unprimeable number, because it can be changed into a prime (421534369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4132639 + ... + 4132740.

It is an arithmetic number, because the mean of its divisors is an integer number (74388420).

Almost surely, 2^421534329 is an apocalyptic number.

It is an amenable number.

421534329 is a deficient number, since it is larger than the sum of its proper divisors (173573031).

421534329 is a wasteful number, since it uses less digits than its factorization.

421534329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265399.

The product of its digits is 25920, while the sum is 33.

The square root of 421534329 is about 20531.3012008494. The cubic root of 421534329 is about 749.7980665243.

The spelling of 421534329 in words is "four hundred twenty-one million, five hundred thirty-four thousand, three hundred twenty-nine".