71426737 has 2 divisors, whose sum is σ = 71426738. Its totient is φ = 71426736.

The previous prime is 71426711. The next prime is 71426743. The reversal of 71426737 is 73762417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44635761 + 26790976 = 6681^2 + 5176^2 .

It is an emirp because it is prime and its reverse (73762417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71426737 - 2⁷ = 71426609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71426696 and 71426705.

It is not a weakly prime, because it can be changed into another prime (71426137) 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, 35713368 + 35713369.

It is an arithmetic number, because the mean of its divisors is an integer number (35713369).

Almost surely, 2^71426737 is an apocalyptic number.

It is an amenable number.

71426737 is a deficient number, since it is larger than the sum of its proper divisors (1).

71426737 is an equidigital number, since it uses as much as digits as its factorization.

71426737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49392, while the sum is 37.

The square root of 71426737 is about 8451.4340203305. The cubic root of 71426737 is about 414.9097147185.

The spelling of 71426737 in words is "seventy-one million, four hundred twenty-six thousand, seven hundred thirty-seven".