71971283 has 8 divisors (see below), whose sum is σ = 73032960. Its totient is φ = 70917120.

The previous prime is 71971279. The next prime is 71971307. The reversal of 71971283 is 38217917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71971283 - 2² = 71971279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71971883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19091 + ... + 22547.

It is an arithmetic number, because the mean of its divisors is an integer number (9129120).

Almost surely, 2^71971283 is an apocalyptic number.

71971283 is a deficient number, since it is larger than the sum of its proper divisors (1061677).

71971283 is a wasteful number, since it uses less digits than its factorization.

71971283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757.

The product of its digits is 21168, while the sum is 38.

The square root of 71971283 is about 8483.5890400231. The cubic root of 71971283 is about 415.9614482118.

The spelling of 71971283 in words is "seventy-one million, nine hundred seventy-one thousand, two hundred eighty-three".