71685674 has 8 divisors (see below), whose sum is σ = 107566788. Its totient is φ = 35830080.

The previous prime is 71685643. The next prime is 71685683. The reversal of 71685674 is 47658617.

It can be written as a sum of positive squares in 2 ways, for example, as 70442449 + 1243225 = 8393^2 + 1115^2 .

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

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, 4064 + ... + 12644.

Almost surely, 2^71685674 is an apocalyptic number.

71685674 is a deficient number, since it is larger than the sum of its proper divisors (35881114).

71685674 is a wasteful number, since it uses less digits than its factorization.

71685674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12760.

The product of its digits is 282240, while the sum is 44.

The square root of 71685674 is about 8466.7392779039. The cubic root of 71685674 is about 415.4104885031.

The spelling of 71685674 in words is "seventy-one million, six hundred eighty-five thousand, six hundred seventy-four".