8428523 has 4 divisors (see below), whose sum is σ = 8434368. Its totient is φ = 8422680.

The previous prime is 8428517. The next prime is 8428547. The reversal of 8428523 is 3258248.

8428523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8428523 - 2¹⁴ = 8412139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8428523.

It is not an unprimeable number, because it can be changed into a prime (8428513) 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, 965 + ... + 4217.

It is an arithmetic number, because the mean of its divisors is an integer number (2108592).

Almost surely, 2^8428523 is an apocalyptic number.

8428523 is a deficient number, since it is larger than the sum of its proper divisors (5845).

8428523 is a wasteful number, since it uses less digits than its factorization.

8428523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5844.

The product of its digits is 15360, while the sum is 32.

The square root of 8428523 is about 2903.1918641385. The cubic root of 8428523 is about 203.5090961369.

It can be divided in two parts, 842 and 8523, that multiplied together give a triangular number (7176366 = T₃₇₈₈).

The spelling of 8428523 in words is "eight million, four hundred twenty-eight thousand, five hundred twenty-three".