73504169 has 2 divisors, whose sum is σ = 73504170. Its totient is φ = 73504168.

The previous prime is 73504139. The next prime is 73504271. The reversal of 73504169 is 96140537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37982569 + 35521600 = 6163^2 + 5960^2 .

It is a cyclic number.

It is not a de Polignac number, because 73504169 - 2¹² = 73500073 is a prime.

It is a super-2 number, since 2×73504169² = 10805725720761122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73504139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36752084 + 36752085.

It is an arithmetic number, because the mean of its divisors is an integer number (36752085).

Almost surely, 2^73504169 is an apocalyptic number.

It is an amenable number.

73504169 is a deficient number, since it is larger than the sum of its proper divisors (1).

73504169 is an equidigital number, since it uses as much as digits as its factorization.

73504169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 73504169 is about 8573.4572373110. The cubic root of 73504169 is about 418.8938561510.

The spelling of 73504169 in words is "seventy-three million, five hundred four thousand, one hundred sixty-nine".