428704329 has 8 divisors (see below), whose sum is σ = 572704992. Its totient is φ = 285253280.

The previous prime is 428704327. The next prime is 428704349. The reversal of 428704329 is 923407824.

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

It is a cyclic number.

It is not a de Polignac number, because 428704329 - 2¹ = 428704327 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428704327) 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, 135579 + ... + 138704.

It is an arithmetic number, because the mean of its divisors is an integer number (71588124).

Almost surely, 2^428704329 is an apocalyptic number.

It is an amenable number.

428704329 is a deficient number, since it is larger than the sum of its proper divisors (144000663).

428704329 is a wasteful number, since it uses less digits than its factorization.

428704329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274807.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 428704329 is about 20705.1763817650. The cubic root of 428704329 is about 754.0253663600.

The spelling of 428704329 in words is "four hundred twenty-eight million, seven hundred four thousand, three hundred twenty-nine".