71282393 has 8 divisors (see below), whose sum is σ = 87732288. Its totient is φ = 56399184.

The previous prime is 71282381. The next prime is 71282399. The reversal of 71282393 is 39328217.

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 71282393 - 2⁶ = 71282329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71282399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391571 + ... + 391752.

It is an arithmetic number, because the mean of its divisors is an integer number (10966536).

Almost surely, 2^71282393 is an apocalyptic number.

It is an amenable number.

71282393 is a deficient number, since it is larger than the sum of its proper divisors (16449895).

71282393 is a wasteful number, since it uses less digits than its factorization.

71282393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783343.

The product of its digits is 18144, while the sum is 35.

The square root of 71282393 is about 8442.8900857467. The cubic root of 71282393 is about 414.6300336597.

The spelling of 71282393 in words is "seventy-one million, two hundred eighty-two thousand, three hundred ninety-three".