71969236 has 12 divisors (see below), whose sum is σ = 126512512. Its totient is φ = 35822808.

The previous prime is 71969201. The next prime is 71969243. The reversal of 71969236 is 63296917.

It is a junction number, because it is equal to n+sod(n) for n = 71969192 and 71969201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39450 + ... + 41233.

Almost surely, 2^71969236 is an apocalyptic number.

It is an amenable number.

71969236 is a deficient number, since it is larger than the sum of its proper divisors (54543276).

71969236 is a wasteful number, since it uses less digits than its factorization.

71969236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80910 (or 80908 counting only the distinct ones).

The product of its digits is 122472, while the sum is 43.

The square root of 71969236 is about 8483.4683944717. The cubic root of 71969236 is about 415.9575045965.

The spelling of 71969236 in words is "seventy-one million, nine hundred sixty-nine thousand, two hundred thirty-six".