71791793 has 2 divisors, whose sum is σ = 71791794. Its totient is φ = 71791792.

The previous prime is 71791789. The next prime is 71791801. The reversal of 71791793 is 39719717.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71791729 + 64 = 8473^2 + 8^2 .

It is a cyclic number.

It is not a de Polignac number, because 71791793 - 2² = 71791789 is a prime.

It is not a weakly prime, because it can be changed into another prime (71791393) by changing a digit.

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 as a sum of consecutive naturals, namely, 35895896 + 35895897.

It is an arithmetic number, because the mean of its divisors is an integer number (35895897).

Almost surely, 2^71791793 is an apocalyptic number.

It is an amenable number.

71791793 is a deficient number, since it is larger than the sum of its proper divisors (1).

71791793 is an equidigital number, since it uses as much as digits as its factorization.

71791793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 83349, while the sum is 44.

The square root of 71791793 is about 8473.0037767016. The cubic root of 71791793 is about 415.6153700296.

The spelling of 71791793 in words is "seventy-one million, seven hundred ninety-one thousand, seven hundred ninety-three".