428539017 has 8 divisors (see below), whose sum is σ = 571942624. Its totient is φ = 285414048.

The previous prime is 428538991. The next prime is 428539037. The reversal of 428539017 is 710935824.

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

It is not a de Polignac number, because 428539017 - 2⁶ = 428538953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428539037) 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, 66043 + ... + 72240.

It is an arithmetic number, because the mean of its divisors is an integer number (71492828).

Almost surely, 2^428539017 is an apocalyptic number.

It is an amenable number.

428539017 is a deficient number, since it is larger than the sum of its proper divisors (143403607).

428539017 is a wasteful number, since it uses less digits than its factorization.

428539017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139319.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 428539017 is about 20701.1839516488. The cubic root of 428539017 is about 753.9284343890.

The spelling of 428539017 in words is "four hundred twenty-eight million, five hundred thirty-nine thousand, seventeen".