71116477 has 2 divisors, whose sum is σ = 71116478. Its totient is φ = 71116476.

The previous prime is 71116469. The next prime is 71116489. The reversal of 71116477 is 77461117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49716601 + 21399876 = 7051^2 + 4626^2 .

It is a cyclic number.

It is not a de Polignac number, because 71116477 - 2³ = 71116469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71110477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35558238 + 35558239.

It is an arithmetic number, because the mean of its divisors is an integer number (35558239).

Almost surely, 2^71116477 is an apocalyptic number.

It is an amenable number.

71116477 is a deficient number, since it is larger than the sum of its proper divisors (1).

71116477 is an equidigital number, since it uses as much as digits as its factorization.

71116477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8232, while the sum is 34.

The square root of 71116477 is about 8433.0585791870. The cubic root of 71116477 is about 414.3080878637.

The spelling of 71116477 in words is "seventy-one million, one hundred sixteen thousand, four hundred seventy-seven".