71814869 has 8 divisors (see below), whose sum is σ = 82842048. Its totient is φ = 60979680.

The previous prime is 71814811. The next prime is 71814877. The reversal of 71814869 is 96841817.

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 71814869 - 2¹² = 71810773 is a prime.

It is a super-2 number, since 2×71814869² = 10314750818974322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71813869) 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, 47192 + ... + 48689.

It is an arithmetic number, because the mean of its divisors is an integer number (10355256).

Almost surely, 2^71814869 is an apocalyptic number.

It is an amenable number.

71814869 is a deficient number, since it is larger than the sum of its proper divisors (11027179).

71814869 is a wasteful number, since it uses less digits than its factorization.

71814869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95995.

The product of its digits is 96768, while the sum is 44.

The square root of 71814869 is about 8474.3654039698. The cubic root of 71814869 is about 415.6598956059.

The spelling of 71814869 in words is "seventy-one million, eight hundred fourteen thousand, eight hundred sixty-nine".