428189763 has 8 divisors (see below), whose sum is σ = 589336576. Its totient is φ = 276251400.

The previous prime is 428189747. The next prime is 428189791. The reversal of 428189763 is 367981824.

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

It is not a de Polignac number, because 428189763 - 2⁴ = 428189747 is a prime.

It is a super-3 number, since 3×428189763³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428182763) 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, 2302003 + ... + 2302188.

It is an arithmetic number, because the mean of its divisors is an integer number (73667072).

Almost surely, 2^428189763 is an apocalyptic number.

428189763 is a deficient number, since it is larger than the sum of its proper divisors (161146813).

428189763 is a wasteful number, since it uses less digits than its factorization.

428189763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604225.

The product of its digits is 580608, while the sum is 48.

The square root of 428189763 is about 20692.7466277437. The cubic root of 428189763 is about 753.7235646062.

The spelling of 428189763 in words is "four hundred twenty-eight million, one hundred eighty-nine thousand, seven hundred sixty-three".