8139834 has 12 divisors (see below), whose sum is σ = 17636346. Its totient is φ = 2713272.

The previous prime is 8139829. The next prime is 8139869. The reversal of 8139834 is 4389318.

It can be written as a sum of positive squares in only one way, i.e., 8139609 + 225 = 2853^2 + 15^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226089 + ... + 226124.

Almost surely, 2^8139834 is an apocalyptic number.

8139834 is an abundant number, since it is smaller than the sum of its proper divisors (9496512).

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

8139834 is a wasteful number, since it uses less digits than its factorization.

8139834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452221 (or 452218 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 8139834 is about 2853.0394319042. The cubic root of 8139834 is about 201.1585590786.

The spelling of 8139834 in words is "eight million, one hundred thirty-nine thousand, eight hundred thirty-four".