71738533 has 2 divisors, whose sum is σ = 71738534. Its totient is φ = 71738532.

The previous prime is 71738473. The next prime is 71738551. The reversal of 71738533 is 33583717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38353249 + 33385284 = 6193^2 + 5778^2 .

It is an emirp because it is prime and its reverse (33583717) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71738533 - 2⁹ = 71738021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71738492 and 71738501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71738593) 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, 35869266 + 35869267.

It is an arithmetic number, because the mean of its divisors is an integer number (35869267).

Almost surely, 2^71738533 is an apocalyptic number.

It is an amenable number.

71738533 is a deficient number, since it is larger than the sum of its proper divisors (1).

71738533 is an equidigital number, since it uses as much as digits as its factorization.

71738533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 71738533 is about 8469.8602703941. The cubic root of 71738533 is about 415.5125674210.

The spelling of 71738533 in words is "seventy-one million, seven hundred thirty-eight thousand, five hundred thirty-three".