73009169 has 4 divisors (see below), whose sum is σ = 77303844. Its totient is φ = 68714496.

The previous prime is 73009159. The next prime is 73009171. The reversal of 73009169 is 96190037.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51265600 + 21743569 = 7160^2 + 4663^2 .

It is a cyclic number.

It is not a de Polignac number, because 73009169 - 2²⁴ = 56231953 is a prime.

It is a super-2 number, since 2×73009169² = 10660677516141122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73009109) 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, 2147312 + ... + 2147345.

It is an arithmetic number, because the mean of its divisors is an integer number (19325961).

Almost surely, 2^73009169 is an apocalyptic number.

It is an amenable number.

73009169 is a deficient number, since it is larger than the sum of its proper divisors (4294675).

73009169 is a wasteful number, since it uses less digits than its factorization.

73009169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4294674.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 73009169 is about 8544.5403036091. The cubic root of 73009169 is about 417.9514167874.

The spelling of 73009169 in words is "seventy-three million, nine thousand, one hundred sixty-nine".