71723343 has 4 divisors (see below), whose sum is σ = 95631128. Its totient is φ = 47815560.

The previous prime is 71723341. The next prime is 71723359. The reversal of 71723343 is 34332717.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 71723343 - 2¹ = 71723341 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 71723343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71723341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11953888 + ... + 11953893.

It is an arithmetic number, because the mean of its divisors is an integer number (23907782).

Almost surely, 2^71723343 is an apocalyptic number.

71723343 is a deficient number, since it is larger than the sum of its proper divisors (23907785).

71723343 is a wasteful number, since it uses less digits than its factorization.

71723343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23907784.

The product of its digits is 10584, while the sum is 30.

The square root of 71723343 is about 8468.9635139136. The cubic root of 71723343 is about 415.4832383136.

The spelling of 71723343 in words is "seventy-one million, seven hundred twenty-three thousand, three hundred forty-three".