71923373 has 2 divisors, whose sum is σ = 71923374. Its totient is φ = 71923372.

The previous prime is 71923351. The next prime is 71923387. The reversal of 71923373 is 37332917.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56580484 + 15342889 = 7522^2 + 3917^2 .

It is an emirp because it is prime and its reverse (37332917) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71923373 - 2⁶ = 71923309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71923333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35961686 + 35961687.

It is an arithmetic number, because the mean of its divisors is an integer number (35961687).

Almost surely, 2^71923373 is an apocalyptic number.

It is an amenable number.

71923373 is a deficient number, since it is larger than the sum of its proper divisors (1).

71923373 is an equidigital number, since it uses as much as digits as its factorization.

71923373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 35.

The square root of 71923373 is about 8480.7648829572. The cubic root of 71923373 is about 415.8691283501.

The spelling of 71923373 in words is "seventy-one million, nine hundred twenty-three thousand, three hundred seventy-three".