71068319 has 4 divisors (see below), whose sum is σ = 81220944. Its totient is φ = 60915696.

The previous prime is 71068297. The next prime is 71068363. The reversal of 71068319 is 91386017.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71068319 is a prime.

It is a super-2 number, since 2×71068319² = 10101411930971522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71062319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5076302 + ... + 5076315.

It is an arithmetic number, because the mean of its divisors is an integer number (20305236).

Almost surely, 2^71068319 is an apocalyptic number.

71068319 is a deficient number, since it is larger than the sum of its proper divisors (10152625).

71068319 is a wasteful number, since it uses less digits than its factorization.

71068319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10152624.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 71068319 is about 8430.2027852241. The cubic root of 71068319 is about 414.2145476363.

The spelling of 71068319 in words is "seventy-one million, sixty-eight thousand, three hundred nineteen".