71083869 has 8 divisors (see below), whose sum is σ = 98899392. Its totient is φ = 45328800.

The previous prime is 71083847. The next prime is 71083871. The reversal of 71083869 is 96838017.

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

It is not a de Polignac number, because 71083869 - 2⁷ = 71083741 is a prime.

It is a super-2 number, since 2×71083869² = 10105832864018322, 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 71083869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71083819) 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, 515032 + ... + 515169.

It is an arithmetic number, because the mean of its divisors is an integer number (12362424).

Almost surely, 2^71083869 is an apocalyptic number.

It is an amenable number.

71083869 is a deficient number, since it is larger than the sum of its proper divisors (27815523).

71083869 is a wasteful number, since it uses less digits than its factorization.

71083869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030227.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 71083869 is about 8431.1250138994. The cubic root of 71083869 is about 414.2447559700.

The spelling of 71083869 in words is "seventy-one million, eighty-three thousand, eight hundred sixty-nine".