428543613 has 24 divisors (see below), whose sum is σ = 679922880. Its totient is φ = 258888960.

The previous prime is 428543611. The next prime is 428543617. The reversal of 428543613 is 316345824.

It is not a de Polignac number, because 428543613 - 2¹ = 428543611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428543611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50548 + ... + 58413.

It is an arithmetic number, because the mean of its divisors is an integer number (28330120).

Almost surely, 2^428543613 is an apocalyptic number.

It is an amenable number.

428543613 is a deficient number, since it is larger than the sum of its proper divisors (251379267).

428543613 is a wasteful number, since it uses less digits than its factorization.

428543613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109009 (or 109006 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 428543613 is about 20701.2949594947. The cubic root of 428543613 is about 753.9311296260.

The spelling of 428543613 in words is "four hundred twenty-eight million, five hundred forty-three thousand, six hundred thirteen".