73311652 has 72 divisors (see below), whose sum is σ = 148279040. Its totient is φ = 31570560.

The previous prime is 73311647. The next prime is 73311673. The reversal of 73311652 is 25611337.

It is a self number, because there is not a number n which added to its sum of digits gives 73311652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1981378 + ... + 1981414.

Almost surely, 2^73311652 is an apocalyptic number.

It is an amenable number.

73311652 is an abundant number, since it is smaller than the sum of its proper divisors (74967388).

73311652 is a wasteful number, since it uses less digits than its factorization.

73311652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 118 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 73311652 is about 8562.2223750613. Note that the first 3 decimals coincide. The cubic root of 73311652 is about 418.5278238651.

Adding to 73311652 its reverse (25611337), we get a palindrome (98922989).

The spelling of 73311652 in words is "seventy-three million, three hundred eleven thousand, six hundred fifty-two".