71743073 has 2 divisors, whose sum is σ = 71743074. Its totient is φ = 71743072.

The previous prime is 71743057. The next prime is 71743081. The reversal of 71743073 is 37034717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66064384 + 5678689 = 8128^2 + 2383^2 .

It is a cyclic number.

It is not a de Polignac number, because 71743073 - 2⁴ = 71743057 is a prime.

It is not a weakly prime, because it can be changed into another prime (71743093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35871536 + 35871537.

It is an arithmetic number, because the mean of its divisors is an integer number (35871537).

Almost surely, 2^71743073 is an apocalyptic number.

It is an amenable number.

71743073 is a deficient number, since it is larger than the sum of its proper divisors (1).

71743073 is an equidigital number, since it uses as much as digits as its factorization.

71743073 is an evil number, because the sum of its binary digits is even.

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

The square root of 71743073 is about 8470.1282752978. The cubic root of 71743073 is about 415.5213325258.

The spelling of 71743073 in words is "seventy-one million, seven hundred forty-three thousand, seventy-three".