80371681 has 8 divisors (see below), whose sum is σ = 86757440. Its totient is φ = 74014992.

The previous prime is 80371667. The next prime is 80371703. The reversal of 80371681 is 18617308.

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 80371681 - 2⁵ = 80371649 is a prime.

It is a super-2 number, since 2×80371681² = 12919214213531522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80371481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1335 + ... + 12748.

It is an arithmetic number, because the mean of its divisors is an integer number (10844680).

Almost surely, 2^80371681 is an apocalyptic number.

It is an amenable number.

80371681 is a deficient number, since it is larger than the sum of its proper divisors (6385759).

80371681 is a wasteful number, since it uses less digits than its factorization.

80371681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14535.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 80371681 is about 8965.0254322004. The cubic root of 80371681 is about 431.5532092677.

Adding to 80371681 its reverse (18617308), we get a palindrome (98988989).

The spelling of 80371681 in words is "eighty million, three hundred seventy-one thousand, six hundred eighty-one".