80173943 has 2 divisors, whose sum is σ = 80173944. Its totient is φ = 80173942.

The previous prime is 80173927. The next prime is 80173987. The reversal of 80173943 is 34937108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80173943 - 2⁴ = 80173927 is a prime.

It is a super-2 number, since 2×80173943² = 12855722272334498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80173993) 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 as a sum of consecutive naturals, namely, 40086971 + 40086972.

It is an arithmetic number, because the mean of its divisors is an integer number (40086972).

Almost surely, 2^80173943 is an apocalyptic number.

80173943 is a deficient number, since it is larger than the sum of its proper divisors (1).

80173943 is an equidigital number, since it uses as much as digits as its factorization.

80173943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 80173943 is about 8953.9903395079. The cubic root of 80173943 is about 431.1990026372.

The spelling of 80173943 in words is "eighty million, one hundred seventy-three thousand, nine hundred forty-three".