71857382 has 16 divisors (see below), whose sum is σ = 112694112. Its totient is φ = 34298880.

The previous prime is 71857381. The next prime is 71857391. The reversal of 71857382 is 28375817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71857381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28268 + ... + 30704.

It is an arithmetic number, because the mean of its divisors is an integer number (7043382).

Almost surely, 2^71857382 is an apocalyptic number.

71857382 is a deficient number, since it is larger than the sum of its proper divisors (40836730).

71857382 is a wasteful number, since it uses less digits than its factorization.

71857382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103.

The product of its digits is 94080, while the sum is 41.

The square root of 71857382 is about 8476.8733622722. The cubic root of 71857382 is about 415.7419002733.

The spelling of 71857382 in words is "seventy-one million, eight hundred fifty-seven thousand, three hundred eighty-two".