71335669 has 2 divisors, whose sum is σ = 71335670. Its totient is φ = 71335668.

The previous prime is 71335603. The next prime is 71335697. The reversal of 71335669 is 96653317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67486225 + 3849444 = 8215^2 + 1962^2 .

It is a cyclic number.

It is not a de Polignac number, because 71335669 - 2⁷ = 71335541 is a prime.

It is a super-2 number, since 2×71335669² = 10177555343355122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71335699) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35667834 + 35667835.

It is an arithmetic number, because the mean of its divisors is an integer number (35667835).

Almost surely, 2^71335669 is an apocalyptic number.

It is an amenable number.

71335669 is a deficient number, since it is larger than the sum of its proper divisors (1).

71335669 is an equidigital number, since it uses as much as digits as its factorization.

71335669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 40.

The square root of 71335669 is about 8446.0445771971. The cubic root of 71335669 is about 414.7333052053.

The spelling of 71335669 in words is "seventy-one million, three hundred thirty-five thousand, six hundred sixty-nine".