71386685 has 8 divisors (see below), whose sum is σ = 85756416. Its totient is φ = 57047760.

The previous prime is 71386681. The next prime is 71386703. The reversal of 71386685 is 58668317.

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

It is not a de Polignac number, because 71386685 - 2² = 71386681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71386681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2249 + ... + 12158.

It is an arithmetic number, because the mean of its divisors is an integer number (10719552).

Almost surely, 2^71386685 is an apocalyptic number.

It is an amenable number.

71386685 is a deficient number, since it is larger than the sum of its proper divisors (14369731).

71386685 is a wasteful number, since it uses less digits than its factorization.

71386685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15403.

The product of its digits is 241920, while the sum is 44.

The square root of 71386685 is about 8449.0641493600. The cubic root of 71386685 is about 414.8321477285.

The spelling of 71386685 in words is "seventy-one million, three hundred eighty-six thousand, six hundred eighty-five".