80409193 has 2 divisors, whose sum is σ = 80409194. Its totient is φ = 80409192.

The previous prime is 80409181. The next prime is 80409209. The reversal of 80409193 is 39190408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64513024 + 15896169 = 8032^2 + 3987^2 .

It is a cyclic number.

It is not a de Polignac number, because 80409193 - 2¹³ = 80401001 is a prime.

It is a super-2 number, since 2×80409193² = 12931276637822498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80409143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40204596 + 40204597.

It is an arithmetic number, because the mean of its divisors is an integer number (40204597).

Almost surely, 2^80409193 is an apocalyptic number.

It is an amenable number.

80409193 is a deficient number, since it is larger than the sum of its proper divisors (1).

80409193 is an equidigital number, since it uses as much as digits as its factorization.

80409193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 80409193 is about 8967.1173182913. The cubic root of 80409193 is about 431.6203386591.

The spelling of 80409193 in words is "eighty million, four hundred nine thousand, one hundred ninety-three".