71352836 has 6 divisors (see below), whose sum is σ = 124867470. Its totient is φ = 35676416.

The previous prime is 71352823. The next prime is 71352839. The reversal of 71352836 is 63825317.

It can be written as a sum of positive squares in only one way, i.e., 55591936 + 15760900 = 7456^2 + 3970^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71352796 and 71352805.

It is not an unprimeable number, because it can be changed into a prime (71352839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8919101 + ... + 8919108.

It is an arithmetic number, because the mean of its divisors is an integer number (20811245).

Almost surely, 2^71352836 is an apocalyptic number.

It is an amenable number.

71352836 is a deficient number, since it is larger than the sum of its proper divisors (53514634).

71352836 is a wasteful number, since it uses less digits than its factorization.

71352836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17838213 (or 17838211 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 71352836 is about 8447.0607905946. The cubic root of 71352836 is about 414.7665711984.

The spelling of 71352836 in words is "seventy-one million, three hundred fifty-two thousand, eight hundred thirty-six".