71938283 has 4 divisors (see below), whose sum is σ = 72239520. Its totient is φ = 71637048.

The previous prime is 71938277. The next prime is 71938297. The reversal of 71938283 is 38283917.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71938283 - 2⁴ = 71938267 is a prime.

It is a super-3 number, since 3×71938283³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71938283.

It is not an unprimeable number, because it can be changed into a prime (71938213) 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 in 3 ways as a sum of consecutive naturals, for example, 150260 + ... + 150737.

It is an arithmetic number, because the mean of its divisors is an integer number (18059880).

Almost surely, 2^71938283 is an apocalyptic number.

71938283 is a deficient number, since it is larger than the sum of its proper divisors (301237).

71938283 is a wasteful number, since it uses less digits than its factorization.

71938283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301236.

The product of its digits is 72576, while the sum is 41.

The square root of 71938283 is about 8481.6438854741. The cubic root of 71938283 is about 415.8978634702.

The spelling of 71938283 in words is "seventy-one million, nine hundred thirty-eight thousand, two hundred eighty-three".