71642713 has 2 divisors, whose sum is σ = 71642714. Its totient is φ = 71642712.

The previous prime is 71642707. The next prime is 71642719. The reversal of 71642713 is 31724617.

It is a balanced prime because it is at equal distance from previous prime (71642707) and next prime (71642719).

It can be written as a sum of positive squares in only one way, i.e., 45805824 + 25836889 = 6768^2 + 5083^2 .

It is a cyclic number.

It is not a de Polignac number, because 71642713 - 2¹⁷ = 71511641 is a prime.

It is not a weakly prime, because it can be changed into another prime (71642719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35821356 + 35821357.

It is an arithmetic number, because the mean of its divisors is an integer number (35821357).

Almost surely, 2^71642713 is an apocalyptic number.

It is an amenable number.

71642713 is a deficient number, since it is larger than the sum of its proper divisors (1).

71642713 is an equidigital number, since it uses as much as digits as its factorization.

71642713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 31.

The square root of 71642713 is about 8464.2018525080. The cubic root of 71642713 is about 415.3274871850.

The spelling of 71642713 in words is "seventy-one million, six hundred forty-two thousand, seven hundred thirteen".