71298393 has 16 divisors (see below), whose sum is σ = 100396800. Its totient is φ = 44882640.

The previous prime is 71298379. The next prime is 71298397. The reversal of 71298393 is 39389217.

It is not a de Polignac number, because 71298393 - 2⁵ = 71298361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71298397) 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 15 ways as a sum of consecutive naturals, for example, 16978 + ... + 20756.

It is an arithmetic number, because the mean of its divisors is an integer number (6274800).

Almost surely, 2^71298393 is an apocalyptic number.

It is an amenable number.

71298393 is a deficient number, since it is larger than the sum of its proper divisors (29098407).

71298393 is a wasteful number, since it uses less digits than its factorization.

71298393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132.

The product of its digits is 81648, while the sum is 42.

The square root of 71298393 is about 8443.8375754156. The cubic root of 71298393 is about 414.6610538690.

The spelling of 71298393 in words is "seventy-one million, two hundred ninety-eight thousand, three hundred ninety-three".