71320604 has 18 divisors (see below), whose sum is σ = 131728464. Its totient is φ = 33782760.

The previous prime is 71320597. The next prime is 71320609. The reversal of 71320604 is 40602317.

It is a self number, because there is not a number n which added to its sum of digits gives 71320604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71320609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23252 + ... + 26139.

It is an arithmetic number, because the mean of its divisors is an integer number (7318248).

Almost surely, 2^71320604 is an apocalyptic number.

It is an amenable number.

71320604 is a deficient number, since it is larger than the sum of its proper divisors (60407860).

71320604 is a wasteful number, since it uses less digits than its factorization.

71320604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49433 (or 49412 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 71320604 is about 8445.1526925213. The cubic root of 71320604 is about 414.7041080439.

The spelling of 71320604 in words is "seventy-one million, three hundred twenty thousand, six hundred four".