8081656 has 16 divisors (see below), whose sum is σ = 16530840. Its totient is φ = 3673440.

The previous prime is 8081653. The next prime is 8081657. The reversal of 8081656 is 6561808.

It is a happy number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081653) 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 3 ways as a sum of consecutive naturals, for example, 45831 + ... + 46006.

Almost surely, 2^8081656 is an apocalyptic number.

It is an amenable number.

8081656 is an abundant number, since it is smaller than the sum of its proper divisors (8449184).

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

8081656 is a wasteful number, since it uses less digits than its factorization.

8081656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91854 (or 91850 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 8081656 is about 2842.8253551705. The cubic root of 8081656 is about 200.6781645319.

The spelling of 8081656 in words is "eight million, eighty-one thousand, six hundred fifty-six".