71724036 has 24 divisors (see below), whose sum is σ = 169855840. Its totient is φ = 23550912.

The previous prime is 71724013. The next prime is 71724041. The reversal of 71724036 is 63042717.

It is a junction number, because it is equal to n+sod(n) for n = 71723994 and 71724012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43801 + ... + 45408.

Almost surely, 2^71724036 is an apocalyptic number.

It is an amenable number.

71724036 is an abundant number, since it is smaller than the sum of its proper divisors (98131804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71724036 is a wasteful number, since it uses less digits than its factorization.

71724036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89283 (or 89281 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 71724036 is about 8469.0044279124. The cubic root of 71724036 is about 415.4845764598.

It can be divided in two parts, 717 and 24036, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 71724036 in words is "seventy-one million, seven hundred twenty-four thousand, thirty-six".