8139800 has 24 divisors (see below), whose sum is σ = 18925500. Its totient is φ = 3255840.

The previous prime is 8139797. The next prime is 8139829. The reversal of 8139800 is 89318.

It is a happy number.

It is a congruent number.

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, 20150 + ... + 20549.

Almost surely, 2^8139800 is an apocalyptic number.

It is an amenable number.

8139800 is an abundant number, since it is smaller than the sum of its proper divisors (10785700).

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

8139800 is a wasteful number, since it uses less digits than its factorization.

8139800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40715 (or 40706 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 8139800 is about 2853.0334733403. The cubic root of 8139800 is about 201.1582789991.

The spelling of 8139800 in words is "eight million, one hundred thirty-nine thousand, eight hundred".