80817941 has 12 divisors (see below), whose sum is σ = 83708460. Its totient is φ = 78019200.

The previous prime is 80817937. The next prime is 80817959. The reversal of 80817941 is 14971808.

It can be written as a sum of positive squares in 2 ways, for example, as 71757841 + 9060100 = 8471^2 + 3010^2 .

It is not a de Polignac number, because 80817941 - 2² = 80817937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80817895 and 80817904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80817901) 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 11 ways as a sum of consecutive naturals, for example, 201341 + ... + 201741.

It is an arithmetic number, because the mean of its divisors is an integer number (6975705).

Almost surely, 2^80817941 is an apocalyptic number.

It is an amenable number.

80817941 is a deficient number, since it is larger than the sum of its proper divisors (2890519).

80817941 is a wasteful number, since it uses less digits than its factorization.

80817941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 80817941 is about 8989.8799213338. The cubic root of 80817941 is about 432.3504618514.

The spelling of 80817941 in words is "eighty million, eight hundred seventeen thousand, nine hundred forty-one".