80394169 has 2 divisors, whose sum is σ = 80394170. Its totient is φ = 80394168.

The previous prime is 80394161. The next prime is 80394179. The reversal of 80394169 is 96149308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77792400 + 2601769 = 8820^2 + 1613^2 .

It is a cyclic number.

It is not a de Polignac number, because 80394169 - 2³ = 80394161 is a prime.

It is a super-2 number, since 2×80394169² = 12926444818401122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80394161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40197084 + 40197085.

It is an arithmetic number, because the mean of its divisors is an integer number (40197085).

Almost surely, 2^80394169 is an apocalyptic number.

It is an amenable number.

80394169 is a deficient number, since it is larger than the sum of its proper divisors (1).

80394169 is an equidigital number, since it uses as much as digits as its factorization.

80394169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 80394169 is about 8966.2795517427. The cubic root of 80394169 is about 431.5934550502.

The spelling of 80394169 in words is "eighty million, three hundred ninety-four thousand, one hundred sixty-nine".