71326369 has 2 divisors, whose sum is σ = 71326370. Its totient is φ = 71326368.

The previous prime is 71326357. The next prime is 71326397. The reversal of 71326369 is 96362317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70980625 + 345744 = 8425^2 + 588^2 .

It is a cyclic number.

It is not a de Polignac number, because 71326369 - 2⁵ = 71326337 is a prime.

It is a super-2 number, since 2×71326369² = 10174901829448322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71326349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35663184 + 35663185.

It is an arithmetic number, because the mean of its divisors is an integer number (35663185).

Almost surely, 2^71326369 is an apocalyptic number.

It is an amenable number.

71326369 is a deficient number, since it is larger than the sum of its proper divisors (1).

71326369 is an equidigital number, since it uses as much as digits as its factorization.

71326369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 37.

The square root of 71326369 is about 8445.4940056814. The cubic root of 71326369 is about 414.7152815555.

The spelling of 71326369 in words is "seventy-one million, three hundred twenty-six thousand, three hundred sixty-nine".