73082209 has 4 divisors (see below), whose sum is σ = 74280340. Its totient is φ = 71884080.

The previous prime is 73082197. The next prime is 73082249. The reversal of 73082209 is 90228037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90228037 = 569 ⋅158573.

It can be written as a sum of positive squares in 2 ways, for example, as 25472209 + 47610000 = 5047^2 + 6900^2 .

It is a cyclic number.

It is not a de Polignac number, because 73082209 - 2¹³ = 73074017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73082249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598974 + ... + 599095.

It is an arithmetic number, because the mean of its divisors is an integer number (18570085).

Almost surely, 2^73082209 is an apocalyptic number.

It is an amenable number.

73082209 is a deficient number, since it is larger than the sum of its proper divisors (1198131).

73082209 is a wasteful number, since it uses less digits than its factorization.

73082209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198130.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 73082209 is about 8548.8133094600. The cubic root of 73082209 is about 418.0907463060.

The spelling of 73082209 in words is "seventy-three million, eighty-two thousand, two hundred nine".