71300072 has 8 divisors (see below), whose sum is σ = 133687650. Its totient is φ = 35650032.

The previous prime is 71300059. The next prime is 71300083. The reversal of 71300072 is 27000317.

It can be written as a sum of positive squares in only one way, i.e., 58583716 + 12716356 = 7654^2 + 3566^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4456247 + ... + 4456262.

Almost surely, 2^71300072 is an apocalyptic number.

It is an amenable number.

71300072 is a deficient number, since it is larger than the sum of its proper divisors (62387578).

71300072 is a wasteful number, since it uses less digits than its factorization.

71300072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8912515 (or 8912511 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 71300072 is about 8443.9369964490. The cubic root of 71300072 is about 414.6643087831.

Adding to 71300072 its reverse (27000317), we get a palindrome (98300389).

The spelling of 71300072 in words is "seventy-one million, three hundred thousand, seventy-two".