71683438 has 8 divisors (see below), whose sum is σ = 107601840. Its totient is φ = 35816160.

The previous prime is 71683427. The next prime is 71683459. The reversal of 71683438 is 83438617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 71683438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9058 + ... + 15013.

It is an arithmetic number, because the mean of its divisors is an integer number (13450230).

Almost surely, 2^71683438 is an apocalyptic number.

71683438 is a deficient number, since it is larger than the sum of its proper divisors (35918402).

71683438 is a wasteful number, since it uses less digits than its factorization.

71683438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25562.

The product of its digits is 96768, while the sum is 40.

The square root of 71683438 is about 8466.6072307625. The cubic root of 71683438 is about 415.4061693346.

The spelling of 71683438 in words is "seventy-one million, six hundred eighty-three thousand, four hundred thirty-eight".