71322733 has 8 divisors (see below), whose sum is σ = 72155160. Its totient is φ = 70493760.

The previous prime is 71322721. The next prime is 71322743. The reversal of 71322733 is 33722317.

It can be written as a sum of positive squares in 4 ways, for example, as 9259849 + 62062884 = 3043^2 + 7878^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 71322733 - 2⁹ = 71322221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71322743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86463 + ... + 87283.

It is an arithmetic number, because the mean of its divisors is an integer number (9019395).

Almost surely, 2^71322733 is an apocalyptic number.

It is an amenable number.

71322733 is a deficient number, since it is larger than the sum of its proper divisors (832427).

71322733 is a wasteful number, since it uses less digits than its factorization.

71322733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727.

The product of its digits is 5292, while the sum is 28.

The square root of 71322733 is about 8445.2787402193. The cubic root of 71322733 is about 414.7082344638.

The spelling of 71322733 in words is "seventy-one million, three hundred twenty-two thousand, seven hundred thirty-three".