71860093 has 2 divisors, whose sum is σ = 71860094. Its totient is φ = 71860092.

The previous prime is 71860091. The next prime is 71860141. The reversal of 71860093 is 39006817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68856804 + 3003289 = 8298^2 + 1733^2 .

It is an emirp because it is prime and its reverse (39006817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71860093 - 2¹ = 71860091 is a prime.

Together with 71860091, 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 (71860091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35930046 + 35930047.

It is an arithmetic number, because the mean of its divisors is an integer number (35930047).

Almost surely, 2^71860093 is an apocalyptic number.

It is an amenable number.

71860093 is a deficient number, since it is larger than the sum of its proper divisors (1).

71860093 is an equidigital number, since it uses as much as digits as its factorization.

71860093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 71860093 is about 8477.0332664205. The cubic root of 71860093 is about 415.7471285096.

The spelling of 71860093 in words is "seventy-one million, eight hundred sixty thousand, ninety-three".