71268723 has 12 divisors (see below), whose sum is σ = 103030200. Its totient is φ = 47472576.

The previous prime is 71268719. The next prime is 71268749. The reversal of 71268723 is 32786217.

It is not a de Polignac number, because 71268723 - 2² = 71268719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71268763) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 11428 + ... + 16526.

It is an arithmetic number, because the mean of its divisors is an integer number (8585850).

Almost surely, 2^71268723 is an apocalyptic number.

71268723 is a deficient number, since it is larger than the sum of its proper divisors (31761477).

71268723 is a wasteful number, since it uses less digits than its factorization.

71268723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6658 (or 6655 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 71268723 is about 8442.0804900214. The cubic root of 71268723 is about 414.6035270911.

The spelling of 71268723 in words is "seventy-one million, two hundred sixty-eight thousand, seven hundred twenty-three".