8139696 has 40 divisors (see below), whose sum is σ = 21349824. Its totient is φ = 2671680.

The previous prime is 8139683. The next prime is 8139707. The reversal of 8139696 is 6969318.

It is an Ulam number.

It is a zygodrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1951 + ... + 4481.

Almost surely, 2^8139696 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 8139696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10674912).

8139696 is an abundant number, since it is smaller than the sum of its proper divisors (13210128).

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

8139696 is a wasteful number, since it uses less digits than its factorization.

8139696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609 (or 2603 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 8139696 is about 2853.0152470676. The cubic root of 8139696 is about 201.1574222807.

The spelling of 8139696 in words is "eight million, one hundred thirty-nine thousand, six hundred ninety-six".