71302806 has 48 divisors (see below), whose sum is σ = 162381024. Its totient is φ = 22568832.

The previous prime is 71302799. The next prime is 71302817. The reversal of 71302806 is 60820317.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71302806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64450 + ... + 65546.

It is an arithmetic number, because the mean of its divisors is an integer number (3382938).

Almost surely, 2^71302806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71302806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81190512).

71302806 is an abundant number, since it is smaller than the sum of its proper divisors (91078218).

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

71302806 is a wasteful number, since it uses less digits than its factorization.

71302806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 71302806 is about 8444.0988862045. The cubic root of 71302806 is about 414.6696088139.

The spelling of 71302806 in words is "seventy-one million, three hundred two thousand, eight hundred six".