71066319 has 8 divisors (see below), whose sum is σ = 94801200. Its totient is φ = 47354496.

The previous prime is 71066311. The next prime is 71066323. The reversal of 71066319 is 91366017.

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

It is not a de Polignac number, because 71066319 - 2³ = 71066311 is a prime.

It is a super-2 number, since 2×71066319² = 10100843392419522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71066319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71066311) 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, 3607 + ... + 12455.

It is an arithmetic number, because the mean of its divisors is an integer number (11850150).

Almost surely, 2^71066319 is an apocalyptic number.

71066319 is a deficient number, since it is larger than the sum of its proper divisors (23734881).

71066319 is a wasteful number, since it uses less digits than its factorization.

71066319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11529.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 71066319 is about 8430.0841632809. The cubic root of 71066319 is about 414.2106620002.

The spelling of 71066319 in words is "seventy-one million, sixty-six thousand, three hundred nineteen".