71697339 has 24 divisors (see below), whose sum is σ = 123562320. Its totient is φ = 40969152.

The previous prime is 71697337. The next prime is 71697349. The reversal of 71697339 is 93379617.

It is not a de Polignac number, because 71697339 - 2¹ = 71697337 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 71697294 and 71697303.

It is not an unprimeable number, because it can be changed into a prime (71697337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25774 + ... + 28419.

It is an arithmetic number, because the mean of its divisors is an integer number (5148430).

Almost surely, 2^71697339 is an apocalyptic number.

71697339 is a deficient number, since it is larger than the sum of its proper divisors (51864981).

71697339 is a wasteful number, since it uses less digits than its factorization.

71697339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54216 (or 54203 counting only the distinct ones).

The product of its digits is 214326, while the sum is 45.

The square root of 71697339 is about 8467.4281219270. The cubic root of 71697339 is about 415.4330197391.

The spelling of 71697339 in words is "seventy-one million, six hundred ninety-seven thousand, three hundred thirty-nine".