8020817 has 4 divisors (see below), whose sum is σ = 9166656. Its totient is φ = 6874980.

The previous prime is 8020801. The next prime is 8020867. The reversal of 8020817 is 7180208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8020817 - 2⁴ = 8020801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8020867) 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, 572909 + ... + 572922.

It is an arithmetic number, because the mean of its divisors is an integer number (2291664).

Almost surely, 2^8020817 is an apocalyptic number.

It is an amenable number.

8020817 is a deficient number, since it is larger than the sum of its proper divisors (1145839).

8020817 is a wasteful number, since it uses less digits than its factorization.

8020817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145838.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 8020817 is about 2832.1046943925. The cubic root of 8020817 is about 200.1733247493.

The spelling of 8020817 in words is "eight million, twenty thousand, eight hundred seventeen".