71479943 has 2 divisors, whose sum is σ = 71479944. Its totient is φ = 71479942.

The previous prime is 71479939. The next prime is 71479963. The reversal of 71479943 is 34997417.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71479943 - 2² = 71479939 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71479894 and 71479903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71479963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35739971 + 35739972.

It is an arithmetic number, because the mean of its divisors is an integer number (35739972).

Almost surely, 2^71479943 is an apocalyptic number.

71479943 is a deficient number, since it is larger than the sum of its proper divisors (1).

71479943 is an equidigital number, since it uses as much as digits as its factorization.

71479943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 44.

The square root of 71479943 is about 8454.5811841865. The cubic root of 71479943 is about 415.0127116637.

The spelling of 71479943 in words is "seventy-one million, four hundred seventy-nine thousand, nine hundred forty-three".