8135724 has 48 divisors (see below), whose sum is σ = 21168000. Its totient is φ = 2416896.

The previous prime is 8135713. The next prime is 8135759. The reversal of 8135724 is 4275318.

It is a junction number, because it is equal to n+sod(n) for n = 8135691 and 8135700.

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, 2827 + ... + 4925.

It is an arithmetic number, because the mean of its divisors is an integer number (441000).

Almost surely, 2^8135724 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 8135724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10584000).

8135724 is an abundant number, since it is smaller than the sum of its proper divisors (13032276).

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

8135724 is a wasteful number, since it uses less digits than its factorization.

8135724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142 (or 2140 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 8135724 is about 2852.3190564872. The cubic root of 8135724 is about 201.1246967636.

The spelling of 8135724 in words is "eight million, one hundred thirty-five thousand, seven hundred twenty-four".