8081694 has 56 divisors (see below), whose sum is σ = 19044432. Its totient is φ = 2566080.

The previous prime is 8081663. The next prime is 8081699. The reversal of 8081694 is 4961808.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081699) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 33414 + ... + 33654.

Almost surely, 2^8081694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8081694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9522216).

8081694 is an abundant number, since it is smaller than the sum of its proper divisors (10962738).

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

8081694 is a wasteful number, since it uses less digits than its factorization.

8081694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 8081694 is about 2842.8320386544. The cubic root of 8081694 is about 200.6784790614.

The spelling of 8081694 in words is "eight million, eighty-one thousand, six hundred ninety-four".