69040073 has 2 divisors, whose sum is σ = 69040074. Its totient is φ = 69040072.

The previous prime is 69040067. The next prime is 69040087. The reversal of 69040073 is 37004096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56670784 + 12369289 = 7528^2 + 3517^2 .

It is a cyclic number.

It is not a de Polignac number, because 69040073 - 2²⁴ = 52262857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (69040003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34520036 + 34520037.

It is an arithmetic number, because the mean of its divisors is an integer number (34520037).

Almost surely, 2^69040073 is an apocalyptic number.

It is an amenable number.

69040073 is a deficient number, since it is larger than the sum of its proper divisors (1).

69040073 is an equidigital number, since it uses as much as digits as its factorization.

69040073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 69040073 is about 8309.0356239458. The cubic root of 69040073 is about 410.2359795611.

The spelling of 69040073 in words is "sixty-nine million, forty thousand, seventy-three".