71697964 has 12 divisors (see below), whose sum is σ = 135123184. Its totient is φ = 33091344.

The previous prime is 71697931. The next prime is 71698013. The reversal of 71697964 is 46979617.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689352 + ... + 689455.

Almost surely, 2^71697964 is an apocalyptic number.

It is an amenable number.

71697964 is a deficient number, since it is larger than the sum of its proper divisors (63425220).

71697964 is a wasteful number, since it uses less digits than its factorization.

71697964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378824 (or 1378822 counting only the distinct ones).

The product of its digits is 571536, while the sum is 49.

The square root of 71697964 is about 8467.4650279762. The cubic root of 71697964 is about 415.4342268731.

The spelling of 71697964 in words is "seventy-one million, six hundred ninety-seven thousand, nine hundred sixty-four".