71223733 has 8 divisors (see below), whose sum is σ = 81477440. Its totient is φ = 60989760.

The previous prime is 71223731. The next prime is 71223743. The reversal of 71223733 is 33732217.

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 71223733 - 2¹ = 71223731 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 (71223731) 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, 3853 + ... + 12541.

It is an arithmetic number, because the mean of its divisors is an integer number (10184680).

Almost surely, 2^71223733 is an apocalyptic number.

It is an amenable number.

71223733 is a deficient number, since it is larger than the sum of its proper divisors (10253707).

71223733 is a wasteful number, since it uses less digits than its factorization.

71223733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9867.

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

The square root of 71223733 is about 8439.4154418419. The cubic root of 71223733 is about 414.5162660958.

The spelling of 71223733 in words is "seventy-one million, two hundred twenty-three thousand, seven hundred thirty-three".