71875693 has 2 divisors, whose sum is σ = 71875694. Its totient is φ = 71875692.

The previous prime is 71875681. The next prime is 71875729. The reversal of 71875693 is 39657817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38663524 + 33212169 = 6218^2 + 5763^2 .

It is an emirp because it is prime and its reverse (39657817) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71875693 is a prime.

It is a super-2 number, since 2×71875693² = 10332230488460498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71875603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35937846 + 35937847.

It is an arithmetic number, because the mean of its divisors is an integer number (35937847).

Almost surely, 2^71875693 is an apocalyptic number.

It is an amenable number.

71875693 is a deficient number, since it is larger than the sum of its proper divisors (1).

71875693 is an equidigital number, since it uses as much as digits as its factorization.

71875693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 46.

The square root of 71875693 is about 8477.9533497183. The cubic root of 71875693 is about 415.7772109734. Note that the first 3 decimals are identical.

It can be divided in two parts, 7187 and 5693, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 71875693 in words is "seventy-one million, eight hundred seventy-five thousand, six hundred ninety-three".