80917801 has 8 divisors (see below), whose sum is σ = 83855880. Its totient is φ = 77989632.

The previous prime is 80917769. The next prime is 80917813. The reversal of 80917801 is 10871908.

It can be written as a sum of positive squares in 4 ways, for example, as 1690000 + 79227801 = 1300^2 + 8901^2 .

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 80917801 - 2⁵ = 80917769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80917301) 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 7 ways as a sum of consecutive naturals, for example, 16801 + ... + 21073.

It is an arithmetic number, because the mean of its divisors is an integer number (10481985).

Almost surely, 2^80917801 is an apocalyptic number.

It is an amenable number.

80917801 is a deficient number, since it is larger than the sum of its proper divisors (2938079).

80917801 is a wasteful number, since it uses less digits than its factorization.

80917801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 80917801 is about 8995.4322297486. The cubic root of 80917801 is about 432.5284617130.

It can be divided in two parts, 80917 and 801, that added together give a palindrome (81718).

The spelling of 80917801 in words is "eighty million, nine hundred seventeen thousand, eight hundred one".