71706953 has 2 divisors, whose sum is σ = 71706954. Its totient is φ = 71706952.

The previous prime is 71706941. The next prime is 71706967. The reversal of 71706953 is 35960717.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69172489 + 2534464 = 8317^2 + 1592^2 .

It is a cyclic number.

It is not a de Polignac number, because 71706953 - 2¹⁸ = 71444809 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71706983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35853476 + 35853477.

It is an arithmetic number, because the mean of its divisors is an integer number (35853477).

Almost surely, 2^71706953 is an apocalyptic number.

It is an amenable number.

71706953 is a deficient number, since it is larger than the sum of its proper divisors (1).

71706953 is an equidigital number, since it uses as much as digits as its factorization.

71706953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 71706953 is about 8467.9958077458. The cubic root of 71706953 is about 415.4515875809.

The spelling of 71706953 in words is "seventy-one million, seven hundred six thousand, nine hundred fifty-three".