81710104 has 16 divisors (see below), whose sum is σ = 175093200. Its totient is φ = 35018592.

The previous prime is 81710093. The next prime is 81710113. The reversal of 81710104 is 40101718.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729499 + ... + 729610.

It is an arithmetic number, because the mean of its divisors is an integer number (10943325).

Almost surely, 2^81710104 is an apocalyptic number.

It is an amenable number.

81710104 is an abundant number, since it is smaller than the sum of its proper divisors (93383096).

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

81710104 is a wasteful number, since it uses less digits than its factorization.

81710104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459122 (or 1459118 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 81710104 is about 9039.3641369291. The cubic root of 81710104 is about 433.9355734105.

The spelling of 81710104 in words is "eighty-one million, seven hundred ten thousand, one hundred four".