71713838 has 32 divisors (see below), whose sum is σ = 127286208. Its totient is φ = 29664000.

The previous prime is 71713799. The next prime is 71713841. The reversal of 71713838 is 83831717.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57356 + ... + 58592.

It is an arithmetic number, because the mean of its divisors is an integer number (3977694).

Almost surely, 2^71713838 is an apocalyptic number.

71713838 is a deficient number, since it is larger than the sum of its proper divisors (55572370).

71713838 is a wasteful number, since it uses less digits than its factorization.

71713838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388.

The product of its digits is 28224, while the sum is 38.

The square root of 71713838 is about 8468.4023286568. The cubic root of 71713838 is about 415.4648837934.

The spelling of 71713838 in words is "seventy-one million, seven hundred thirteen thousand, eight hundred thirty-eight".