81714801 has 48 divisors (see below), whose sum is σ = 141341760. Its totient is φ = 41610240.

The previous prime is 81714797. The next prime is 81714821. The reversal of 81714801 is 10841718.

It is not a de Polignac number, because 81714801 - 2² = 81714797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81714821) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 46621 + ... + 48341.

It is an arithmetic number, because the mean of its divisors is an integer number (2944620).

Almost surely, 2^81714801 is an apocalyptic number.

It is an amenable number.

81714801 is a deficient number, since it is larger than the sum of its proper divisors (59626959).

81714801 is a wasteful number, since it uses less digits than its factorization.

81714801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 30.

The square root of 81714801 is about 9039.6239412931. The cubic root of 81714801 is about 433.9438879936.

The spelling of 81714801 in words is "eighty-one million, seven hundred fourteen thousand, eight hundred one".