71070733 has 2 divisors, whose sum is σ = 71070734. Its totient is φ = 71070732.

The previous prime is 71070731. The next prime is 71070743. The reversal of 71070733 is 33707017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49744809 + 21325924 = 7053^2 + 4618^2 .

It is an emirp because it is prime and its reverse (33707017) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71070733 - 2¹ = 71070731 is a prime.

Together with 71070731, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71070731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35535366 + 35535367.

It is an arithmetic number, because the mean of its divisors is an integer number (35535367).

Almost surely, 2^71070733 is an apocalyptic number.

It is an amenable number.

71070733 is a deficient number, since it is larger than the sum of its proper divisors (1).

71070733 is an equidigital number, since it uses as much as digits as its factorization.

71070733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3087, while the sum is 28.

The square root of 71070733 is about 8430.3459596864. The cubic root of 71070733 is about 414.2192375019.

The spelling of 71070733 in words is "seventy-one million, seventy thousand, seven hundred thirty-three".