428703013 has 4 divisors (see below), whose sum is σ = 429047500. Its totient is φ = 428358528.

The previous prime is 428702993. The next prime is 428703029. The reversal of 428703013 is 310307824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181521729 + 247181284 = 13473^2 + 15722^2 .

It is a cyclic number.

It is not a de Polignac number, because 428703013 - 2²⁵ = 395148581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428703073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170370 + ... + 172867.

It is an arithmetic number, because the mean of its divisors is an integer number (107261875).

Almost surely, 2^428703013 is an apocalyptic number.

It is an amenable number.

428703013 is a deficient number, since it is larger than the sum of its proper divisors (344487).

428703013 is a wasteful number, since it uses less digits than its factorization.

428703013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344486.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 428703013 is about 20705.1446022480. The cubic root of 428703013 is about 754.0245948116.

The spelling of 428703013 in words is "four hundred twenty-eight million, seven hundred three thousand, thirteen".