428030517 has 8 divisors (see below), whose sum is σ = 590387040. Its totient is φ = 275513840.

The previous prime is 428030509. The next prime is 428030527. The reversal of 428030517 is 715030824.

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 428030517 - 2³ = 428030509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428030507) 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, 2459859 + ... + 2460032.

It is an arithmetic number, because the mean of its divisors is an integer number (73798380).

Almost surely, 2^428030517 is an apocalyptic number.

It is an amenable number.

428030517 is a deficient number, since it is larger than the sum of its proper divisors (162356523).

428030517 is a wasteful number, since it uses less digits than its factorization.

428030517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919923.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 428030517 is about 20688.8983998665. The cubic root of 428030517 is about 753.6301151158.

The spelling of 428030517 in words is "four hundred twenty-eight million, thirty thousand, five hundred seventeen".