71529868 has 12 divisors (see below), whose sum is σ = 125469400. Its totient is φ = 35681472.

The previous prime is 71529859. The next prime is 71529869. The reversal of 71529868 is 86892517.

It is not an unprimeable number, because it can be changed into a prime (71529869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18918 + ... + 22381.

Almost surely, 2^71529868 is an apocalyptic number.

It is an amenable number.

71529868 is a deficient number, since it is larger than the sum of its proper divisors (53939532).

71529868 is a wasteful number, since it uses less digits than its factorization.

71529868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41736 (or 41734 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 71529868 is about 8457.5332101033. The cubic root of 71529868 is about 415.1093107319.

It can be divided in two parts, 7152 and 9868, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 71529868 in words is "seventy-one million, five hundred twenty-nine thousand, eight hundred sixty-eight".