71948339 has 2 divisors, whose sum is σ = 71948340. Its totient is φ = 71948338.

The previous prime is 71948311. The next prime is 71948351. The reversal of 71948339 is 93384917.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (93384917) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71948339 is a prime.

It is a super-3 number, since 3×71948339³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71948339.

It is not a weakly prime, because it can be changed into another prime (71948309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35974169 + 35974170.

It is an arithmetic number, because the mean of its divisors is an integer number (35974170).

Almost surely, 2^71948339 is an apocalyptic number.

71948339 is a deficient number, since it is larger than the sum of its proper divisors (1).

71948339 is an equidigital number, since it uses as much as digits as its factorization.

71948339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 71948339 is about 8482.2366743684. The cubic root of 71948339 is about 415.9172415346.

The spelling of 71948339 in words is "seventy-one million, nine hundred forty-eight thousand, three hundred thirty-nine".