71814005 has 8 divisors (see below), whose sum is σ = 89148600. Its totient is φ = 55470016.

The previous prime is 71813957. The next prime is 71814023. The reversal of 71814005 is 50041817.

It can be written as a sum of positive squares in 4 ways, for example, as 5329 + 71808676 = 73^2 + 8474^2 .

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 71814005 - 2⁶ = 71813941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247490 + ... + 247779.

It is an arithmetic number, because the mean of its divisors is an integer number (11143575).

Almost surely, 2^71814005 is an apocalyptic number.

It is an amenable number.

71814005 is a deficient number, since it is larger than the sum of its proper divisors (17334595).

71814005 is a wasteful number, since it uses less digits than its factorization.

71814005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495303.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 71814005 is about 8474.3144265480. The cubic root of 71814005 is about 415.6582286735.

The spelling of 71814005 in words is "seventy-one million, eight hundred fourteen thousand, five".