8216071 has 4 divisors (see below), whose sum is σ = 8238472. Its totient is φ = 8193672.

The previous prime is 8216063. The next prime is 8216099. The reversal of 8216071 is 1706128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8216071 - 2³ = 8216063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8216371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10641 + ... + 11386.

It is an arithmetic number, because the mean of its divisors is an integer number (2059618).

Almost surely, 2^8216071 is an apocalyptic number.

8216071 is a deficient number, since it is larger than the sum of its proper divisors (22401).

8216071 is a wasteful number, since it uses less digits than its factorization.

8216071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22400.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 8216071 is about 2866.3689574094. The cubic root of 8216071 is about 201.7846199598.

The spelling of 8216071 in words is "eight million, two hundred sixteen thousand, seventy-one".