71227733 has 4 divisors (see below), whose sum is σ = 71639628. Its totient is φ = 70815840.

The previous prime is 71227721. The next prime is 71227747. The reversal of 71227733 is 33772217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33772217 = 17 ⋅1986601.

It can be written as a sum of positive squares in 2 ways, for example, as 65577604 + 5650129 = 8098^2 + 2377^2 .

It is a cyclic number.

It is not a de Polignac number, because 71227733 - 2⁶ = 71227669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71227733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71227753) 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, 205688 + ... + 206033.

It is an arithmetic number, because the mean of its divisors is an integer number (17909907).

Almost surely, 2^71227733 is an apocalyptic number.

It is an amenable number.

71227733 is a deficient number, since it is larger than the sum of its proper divisors (411895).

71227733 is a wasteful number, since it uses less digits than its factorization.

71227733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411894.

The product of its digits is 12348, while the sum is 32.

The square root of 71227733 is about 8439.6524217529. The cubic root of 71227733 is about 414.5240258409.

The spelling of 71227733 in words is "seventy-one million, two hundred twenty-seven thousand, seven hundred thirty-three".