71696018 has 4 divisors (see below), whose sum is σ = 107544030. Its totient is φ = 35848008.

The previous prime is 71695979. The next prime is 71696029. The reversal of 71696018 is 81069617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81069617 = 17 ⋅4768801.

It can be written as a sum of positive squares in only one way, i.e., 71690089 + 5929 = 8467^2 + 77^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17924003 + ... + 17924006.

Almost surely, 2^71696018 is an apocalyptic number.

71696018 is a deficient number, since it is larger than the sum of its proper divisors (35848012).

71696018 is a wasteful number, since it uses less digits than its factorization.

71696018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35848011.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 71696018 is about 8467.3501167721. The cubic root of 71696018 is about 415.4304683177.

The spelling of 71696018 in words is "seventy-one million, six hundred ninety-six thousand, eighteen".