71386534 has 8 divisors (see below), whose sum is σ = 112715640. Its totient is φ = 33814656.

The previous prime is 71386529. The next prime is 71386543. The reversal of 71386534 is 43568317.

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

It is a junction number, because it is equal to n+sod(n) for n = 71386493 and 71386502.

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, 939259 + ... + 939334.

It is an arithmetic number, because the mean of its divisors is an integer number (14089455).

Almost surely, 2^71386534 is an apocalyptic number.

71386534 is a deficient number, since it is larger than the sum of its proper divisors (41329106).

71386534 is a wasteful number, since it uses less digits than its factorization.

71386534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878614.

The product of its digits is 60480, while the sum is 37.

The square root of 71386534 is about 8449.0552134543. The cubic root of 71386534 is about 414.8318552384.

The spelling of 71386534 in words is "seventy-one million, three hundred eighty-six thousand, five hundred thirty-four".