428507703 has 48 divisors (see below), whose sum is σ = 715085280. Its totient is φ = 245037312.

The previous prime is 428507701. The next prime is 428507711. The reversal of 428507703 is 307705824.

It is not a de Polignac number, because 428507703 - 2¹ = 428507701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428507701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116001 + ... + 119637.

It is an arithmetic number, because the mean of its divisors is an integer number (14897610).

Almost surely, 2^428507703 is an apocalyptic number.

428507703 is a deficient number, since it is larger than the sum of its proper divisors (286577577).

428507703 is a wasteful number, since it uses less digits than its factorization.

428507703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728 (or 3725 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 428507703 is about 20700.4276042791. The cubic root of 428507703 is about 753.9100703745.

The spelling of 428507703 in words is "four hundred twenty-eight million, five hundred seven thousand, seven hundred three".