8781798 has 32 divisors (see below), whose sum is σ = 18063360. Its totient is φ = 2845440.

The previous prime is 8781797. The next prime is 8781853. The reversal of 8781798 is 8971878.

It is a super-2 number, since 2×8781798² = 154239952225608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8781793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45883 + ... + 46073.

It is an arithmetic number, because the mean of its divisors is an integer number (564480).

Almost surely, 2^8781798 is an apocalyptic number.

8781798 is an abundant number, since it is smaller than the sum of its proper divisors (9281562).

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

8781798 is a wasteful number, since it uses less digits than its factorization.

8781798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372.

The product of its digits is 225792, while the sum is 48.

The square root of 8781798 is about 2963.4098602792. The cubic root of 8781798 is about 206.3135796640.

The spelling of 8781798 in words is "eight million, seven hundred eighty-one thousand, seven hundred ninety-eight".