71743005 has 12 divisors (see below), whose sum is σ = 124354620. Its totient is φ = 38262912.

The previous prime is 71742977. The next prime is 71743019. The reversal of 71743005 is 50034717.

It can be written as a sum of positive squares in 2 ways, for example, as 24710841 + 47032164 = 4971^2 + 6858^2 .

It is not a de Polignac number, because 71743005 - 2⁹ = 71742493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71743005.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 797100 + ... + 797189.

It is an arithmetic number, because the mean of its divisors is an integer number (10362885).

Almost surely, 2^71743005 is an apocalyptic number.

It is an amenable number.

71743005 is a deficient number, since it is larger than the sum of its proper divisors (52611615).

71743005 is a wasteful number, since it uses less digits than its factorization.

71743005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594300 (or 1594297 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 71743005 is about 8470.1242611900. The cubic root of 71743005 is about 415.5212012450.

The spelling of 71743005 in words is "seventy-one million, seven hundred forty-three thousand, five".