81696095 has 8 divisors (see below), whose sum is σ = 105576576. Its totient is φ = 60329376.

The previous prime is 81696073. The next prime is 81696119. The reversal of 81696095 is 59069618.

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

It is a cyclic number.

It is not a de Polignac number, because 81696095 - 2¹² = 81691999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628367 + ... + 628496.

It is an arithmetic number, because the mean of its divisors is an integer number (13197072).

Almost surely, 2^81696095 is an apocalyptic number.

81696095 is a deficient number, since it is larger than the sum of its proper divisors (23880481).

81696095 is a wasteful number, since it uses less digits than its factorization.

81696095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256881.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 81696095 is about 9038.5892151375. The cubic root of 81696095 is about 433.9107729245.

The spelling of 81696095 in words is "eighty-one million, six hundred ninety-six thousand, ninety-five".