8181798 has 16 divisors (see below), whose sum is σ = 16402176. Its totient is φ = 2720840.

The previous prime is 8181791. The next prime is 8181809. The reversal of 8181798 is 8971818.

8181798 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8181791) 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, 1663 + ... + 4373.

It is an arithmetic number, because the mean of its divisors is an integer number (1025136).

Almost surely, 2^8181798 is an apocalyptic number.

8181798 is an abundant number, since it is smaller than the sum of its proper divisors (8220378).

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

8181798 is a wasteful number, since it uses less digits than its factorization.

8181798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219.

The product of its digits is 32256, while the sum is 42.

The square root of 8181798 is about 2860.3842399230. The cubic root of 8181798 is about 201.5036501831.

The spelling of 8181798 in words is "eight million, one hundred eighty-one thousand, seven hundred ninety-eight".