71816346 has 48 divisors (see below), whose sum is σ = 178948224. Its totient is φ = 20390112.

The previous prime is 71816317. The next prime is 71816369. The reversal of 71816346 is 64361817.

71816346 is a `hidden beast` number, since 7 + 18 + 1 + 634 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 71816346.

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 23 ways as a sum of consecutive naturals, for example, 19336 + ... + 22748.

It is an arithmetic number, because the mean of its divisors is an integer number (3728088).

Almost surely, 2^71816346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71816346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89474112).

71816346 is an abundant number, since it is smaller than the sum of its proper divisors (107131878).

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

71816346 is a wasteful number, since it uses less digits than its factorization.

71816346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595 (or 3592 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 71816346 is about 8474.4525486901. The cubic root of 71816346 is about 415.6627451804.

The spelling of 71816346 in words is "seventy-one million, eight hundred sixteen thousand, three hundred forty-six".