428616123 has 16 divisors (see below), whose sum is σ = 619377696. Its totient is φ = 262080000.

The previous prime is 428616107. The next prime is 428616127. The reversal of 428616123 is 321616824.

It is not a de Polignac number, because 428616123 - 2⁴ = 428616107 is a prime.

It is a super-2 number, since 2×428616123² = 367423561791102258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428616127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28878 + ... + 41123.

It is an arithmetic number, because the mean of its divisors is an integer number (38711106).

Almost surely, 2^428616123 is an apocalyptic number.

428616123 is a deficient number, since it is larger than the sum of its proper divisors (190761573).

428616123 is a wasteful number, since it uses less digits than its factorization.

428616123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70174.

The product of its digits is 13824, while the sum is 33.

The square root of 428616123 is about 20703.0462251332. The cubic root of 428616123 is about 753.9736491904.

It can be divided in two parts, 42861 and 6123, that added together give a palindrome (48984).

The spelling of 428616123 in words is "four hundred twenty-eight million, six hundred sixteen thousand, one hundred twenty-three".