71706373 has 2 divisors, whose sum is σ = 71706374. Its totient is φ = 71706372.

The previous prime is 71706353. The next prime is 71706389. The reversal of 71706373 is 37360717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54789604 + 16916769 = 7402^2 + 4113^2 .

It is a cyclic number.

It is not a de Polignac number, because 71706373 - 2²⁵ = 38151941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71706343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35853186 + 35853187.

It is an arithmetic number, because the mean of its divisors is an integer number (35853187).

Almost surely, 2^71706373 is an apocalyptic number.

It is an amenable number.

71706373 is a deficient number, since it is larger than the sum of its proper divisors (1).

71706373 is an equidigital number, since it uses as much as digits as its factorization.

71706373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18522, while the sum is 34.

The square root of 71706373 is about 8467.9615610842. The cubic root of 71706373 is about 415.4504674545.

The spelling of 71706373 in words is "seventy-one million, seven hundred six thousand, three hundred seventy-three".