71383943 has 2 divisors, whose sum is σ = 71383944. Its totient is φ = 71383942.

The previous prime is 71383937. The next prime is 71383957. The reversal of 71383943 is 34938317.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71383943 - 2¹⁴ = 71367559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71383897 and 71383906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71383903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35691971 + 35691972.

It is an arithmetic number, because the mean of its divisors is an integer number (35691972).

Almost surely, 2^71383943 is an apocalyptic number.

71383943 is a deficient number, since it is larger than the sum of its proper divisors (1).

71383943 is an equidigital number, since it uses as much as digits as its factorization.

71383943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 71383943 is about 8448.9018813098. The cubic root of 71383943 is about 414.8268363537.

The spelling of 71383943 in words is "seventy-one million, three hundred eighty-three thousand, nine hundred forty-three".