8129436 has 24 divisors (see below), whose sum is σ = 21678720. Its totient is φ = 2322672.

The previous prime is 8129431. The next prime is 8129453. The reversal of 8129436 is 6349218.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 8129397 and 8129406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8129431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48306 + ... + 48473.

It is an arithmetic number, because the mean of its divisors is an integer number (903280).

Almost surely, 2^8129436 is an apocalyptic number.

It is an amenable number.

8129436 is an abundant number, since it is smaller than the sum of its proper divisors (13549284).

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

8129436 is a wasteful number, since it uses less digits than its factorization.

8129436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96793 (or 96791 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 8129436 is about 2851.2165824434. The cubic root of 8129436 is about 201.0728678156.

The spelling of 8129436 in words is "eight million, one hundred twenty-nine thousand, four hundred thirty-six".