428470347 has 8 divisors (see below), whose sum is σ = 571392144. Its totient is φ = 285597728.

The previous prime is 428470337. The next prime is 428470351. The reversal of 428470347 is 743074824.

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 428470347 - 2¹² = 428466251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428470307) 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, 20653 + ... + 35825.

It is an arithmetic number, because the mean of its divisors is an integer number (71424018).

Almost surely, 2^428470347 is an apocalyptic number.

428470347 is a deficient number, since it is larger than the sum of its proper divisors (142921797).

428470347 is a wasteful number, since it uses less digits than its factorization.

428470347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24589.

The product of its (nonzero) digits is 150528, while the sum is 39.

The square root of 428470347 is about 20699.5252844117. The cubic root of 428470347 is about 753.8881618746. Note that the first 3 decimals are identical.

The spelling of 428470347 in words is "four hundred twenty-eight million, four hundred seventy thousand, three hundred forty-seven".