8457636 has 48 divisors (see below), whose sum is σ = 22800960. Its totient is φ = 2411520.

The previous prime is 8457623. The next prime is 8457643. The reversal of 8457636 is 6367548.

It is a junction number, because it is equal to n+sod(n) for n = 8457594 and 8457603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360 + ... + 4128.

It is an arithmetic number, because the mean of its divisors is an integer number (475020).

Almost surely, 2^8457636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8457636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11400480).

8457636 is an abundant number, since it is smaller than the sum of its proper divisors (14343324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8457636 is a wasteful number, since it uses less digits than its factorization.

8457636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804 (or 3802 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 8457636 is about 2908.2015060858. The cubic root of 8457636 is about 203.7431407730.

The spelling of 8457636 in words is "eight million, four hundred fifty-seven thousand, six hundred thirty-six".