73538217 has 6 divisors (see below), whose sum is σ = 106221882. Its totient is φ = 49025472.

The previous prime is 73538197. The next prime is 73538263. The reversal of 73538217 is 71283537.

It can be written as a sum of positive squares in only one way, i.e., 73462041 + 76176 = 8571^2 + 276^2 .

It is not a de Polignac number, because 73538217 - 2¹² = 73534121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73538117) 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 in 5 ways as a sum of consecutive naturals, for example, 4085448 + ... + 4085465.

It is an arithmetic number, because the mean of its divisors is an integer number (17703647).

Almost surely, 2^73538217 is an apocalyptic number.

It is an amenable number.

73538217 is a deficient number, since it is larger than the sum of its proper divisors (32683665).

73538217 is a wasteful number, since it uses less digits than its factorization.

73538217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8170919 (or 8170916 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 73538217 is about 8575.4426707897. The cubic root of 73538217 is about 418.9585250289.

The spelling of 73538217 in words is "seventy-three million, five hundred thirty-eight thousand, two hundred seventeen".