71758033 has 2 divisors, whose sum is σ = 71758034. Its totient is φ = 71758032.

The previous prime is 71758031. The next prime is 71758039. The reversal of 71758033 is 33085717.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70358544 + 1399489 = 8388^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 71758033 - 2¹ = 71758031 is a prime.

Together with 71758031, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 71758033.

It is not a weakly prime, because it can be changed into another prime (71758031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35879016 + 35879017.

It is an arithmetic number, because the mean of its divisors is an integer number (35879017).

Almost surely, 2^71758033 is an apocalyptic number.

It is an amenable number.

71758033 is a deficient number, since it is larger than the sum of its proper divisors (1).

71758033 is an equidigital number, since it uses as much as digits as its factorization.

71758033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 71758033 is about 8471.0113327749. The cubic root of 71758033 is about 415.5502122808.

The spelling of 71758033 in words is "seventy-one million, seven hundred fifty-eight thousand, thirty-three".