81108826 has 8 divisors (see below), whose sum is σ = 123203520. Its totient is φ = 40040988.

The previous prime is 81108799. The next prime is 81108827. The reversal of 81108826 is 62880118.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 81108791 and 81108800.

It is not an unprimeable number, because it can be changed into a prime (81108827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256516 + ... + 256831.

It is an arithmetic number, because the mean of its divisors is an integer number (15400440).

Almost surely, 2^81108826 is an apocalyptic number.

81108826 is a deficient number, since it is larger than the sum of its proper divisors (42094694).

81108826 is a wasteful number, since it uses less digits than its factorization.

81108826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513428.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 81108826 is about 9006.0438595423. The cubic root of 81108826 is about 432.8685550591.

The spelling of 81108826 in words is "eighty-one million, one hundred eight thousand, eight hundred twenty-six".