71941693 has 2 divisors, whose sum is σ = 71941694. Its totient is φ = 71941692.

The previous prime is 71941691. The next prime is 71941703. The reversal of 71941693 is 39614917.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46267204 + 25674489 = 6802^2 + 5067^2 .

It is a cyclic number.

It is not a de Polignac number, because 71941693 - 2¹ = 71941691 is a prime.

Together with 71941691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71941691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35970846 + 35970847.

It is an arithmetic number, because the mean of its divisors is an integer number (35970847).

Almost surely, 2^71941693 is an apocalyptic number.

It is an amenable number.

71941693 is a deficient number, since it is larger than the sum of its proper divisors (1).

71941693 is an equidigital number, since it uses as much as digits as its factorization.

71941693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 71941693 is about 8481.8449054436. The cubic root of 71941693 is about 415.9044347942.

The spelling of 71941693 in words is "seventy-one million, nine hundred forty-one thousand, six hundred ninety-three".