71933072 has 10 divisors (see below), whose sum is σ = 139370358. Its totient is φ = 35966528.

The previous prime is 71933047. The next prime is 71933123. The reversal of 71933072 is 27033917.

It can be written as a sum of positive squares in only one way, i.e., 39488656 + 32444416 = 6284^2 + 5696^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2247893 + ... + 2247924.

Almost surely, 2^71933072 is an apocalyptic number.

It is an amenable number.

71933072 is a deficient number, since it is larger than the sum of its proper divisors (67437286).

71933072 is a wasteful number, since it uses less digits than its factorization.

71933072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495825 (or 4495819 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 71933072 is about 8481.3366871030. The cubic root of 71933072 is about 415.8878210838.

Adding to 71933072 its reverse (27033917), we get a palindrome (98966989).

The spelling of 71933072 in words is "seventy-one million, nine hundred thirty-three thousand, seventy-two".