80000069 has 2 divisors, whose sum is σ = 80000070. Its totient is φ = 80000068.

The previous prime is 80000059. The next prime is 80000083. The reversal of 80000069 is 96000008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79887844 + 112225 = 8938^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 80000069 - 2⁸ = 79999813 is a prime.

It is a super-2 number, since 2×80000069² = 12800022080009522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79999999 and 80000053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80000059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40000034 + 40000035.

It is an arithmetic number, because the mean of its divisors is an integer number (40000035).

Almost surely, 2^80000069 is an apocalyptic number.

It is an amenable number.

80000069 is a deficient number, since it is larger than the sum of its proper divisors (1).

80000069 is an equidigital number, since it uses as much as digits as its factorization.

80000069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 80000069 is about 8944.2757672156. The cubic root of 80000069 is about 430.8870618863.

The spelling of 80000069 in words is "eighty million, sixty-nine", and thus it is an aban number and an uban number.