8572842 has 24 divisors (see below), whose sum is σ = 18688644. Its totient is φ = 2840064.

The previous prime is 8572841. The next prime is 8572853. The reversal of 8572842 is 2482758.

It is a happy number.

8572842 is a `hidden beast` number, since 8 + 572 + 84 + 2 = 666.

8572842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6610041 + 1962801 = 2571^2 + 1401^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 8³ + 5² + 7⁶ + 2²² + 8³ + 4⁸ + 2²² .

It is a junction number, because it is equal to n+sod(n) for n = 8572797 and 8572806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8572841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1738 + ... + 4490.

Almost surely, 2^8572842 is an apocalyptic number.

8572842 is an abundant number, since it is smaller than the sum of its proper divisors (10115802).

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

8572842 is a wasteful number, since it uses less digits than its factorization.

8572842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934 (or 2931 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 8572842 is about 2927.9415977782. The cubic root of 8572842 is about 204.6640700839.

It can be divided in two parts, 85 and 72842, that added together give a palindrome (72927).

The spelling of 8572842 in words is "eight million, five hundred seventy-two thousand, eight hundred forty-two".