71868383 has 4 divisors (see below), whose sum is σ = 71891808. Its totient is φ = 71844960.

The previous prime is 71868373. The next prime is 71868389. The reversal of 71868383 is 38386817.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38386817 = 7 ⋅5483831.

It is a cyclic number.

It is not a de Polignac number, because 71868383 - 2¹⁰ = 71867359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71868389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6266 + ... + 13527.

It is an arithmetic number, because the mean of its divisors is an integer number (17972952).

Almost surely, 2^71868383 is an apocalyptic number.

71868383 is a deficient number, since it is larger than the sum of its proper divisors (23425).

71868383 is a wasteful number, since it uses less digits than its factorization.

71868383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23424.

The product of its digits is 193536, while the sum is 44.

The square root of 71868383 is about 8477.5222205548. The cubic root of 71868383 is about 415.7631151814.

The spelling of 71868383 in words is "seventy-one million, eight hundred sixty-eight thousand, three hundred eighty-three".