71808114 has 32 divisors (see below), whose sum is σ = 166118400. Its totient is φ = 20268432.

The previous prime is 71808103. The next prime is 71808127. The reversal of 71808114 is 41180817.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6814 + ... + 13785.

It is an arithmetic number, because the mean of its divisors is an integer number (5191200).

Almost surely, 2^71808114 is an apocalyptic number.

71808114 is an abundant number, since it is smaller than the sum of its proper divisors (94310286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71808114 is a wasteful number, since it uses less digits than its factorization.

71808114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20694.

The product of its (nonzero) digits is 1792, while the sum is 30.

The square root of 71808114 is about 8473.9668396802. The cubic root of 71808114 is about 415.6468626938.

The spelling of 71808114 in words is "seventy-one million, eight hundred eight thousand, one hundred fourteen".