73605231 has 12 divisors (see below), whose sum is σ = 121507152. Its totient is φ = 42060096.

The previous prime is 73605227. The next prime is 73605239. The reversal of 73605231 is 13250637.

It is a happy number.

It is not a de Polignac number, because 73605231 - 2² = 73605227 is a prime.

It is a super-2 number, since 2×73605231² = 10835460061126722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73605195 and 73605204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73605239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584106 + ... + 584231.

It is an arithmetic number, because the mean of its divisors is an integer number (10125596).

Almost surely, 2^73605231 is an apocalyptic number.

73605231 is a deficient number, since it is larger than the sum of its proper divisors (47901921).

73605231 is a wasteful number, since it uses less digits than its factorization.

73605231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168350 (or 1168347 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 73605231 is about 8579.3491011848. The cubic root of 73605231 is about 419.0857494104.

Adding to 73605231 its reverse (13250637), we get a palindrome (86855868).

The spelling of 73605231 in words is "seventy-three million, six hundred five thousand, two hundred thirty-one".