71375687 has 2 divisors, whose sum is σ = 71375688. Its totient is φ = 71375686.

The previous prime is 71375621. The next prime is 71375747. The reversal of 71375687 is 78657317.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71375687 - 2¹⁰ = 71374663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71375587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35687843 + 35687844.

It is an arithmetic number, because the mean of its divisors is an integer number (35687844).

Almost surely, 2^71375687 is an apocalyptic number.

71375687 is a deficient number, since it is larger than the sum of its proper divisors (1).

71375687 is an equidigital number, since it uses as much as digits as its factorization.

71375687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 44.

The square root of 71375687 is about 8448.4132829781. The cubic root of 71375687 is about 414.8108432967.

The spelling of 71375687 in words is "seventy-one million, three hundred seventy-five thousand, six hundred eighty-seven".