8000605 has 4 divisors (see below), whose sum is σ = 9600732. Its totient is φ = 6400480.

The previous prime is 8000599. The next prime is 8000609. The reversal of 8000605 is 5060008.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5866084 + 2134521 = 2422^2 + 1461^2 .

It is not a de Polignac number, because 8000605 - 2²¹ = 5903453 is a prime.

It is a Duffinian number.

8000605 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8000609) 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, 800056 + ... + 800065.

It is an arithmetic number, because the mean of its divisors is an integer number (2400183).

Almost surely, 2^8000605 is an apocalyptic number.

It is an amenable number.

8000605 is a deficient number, since it is larger than the sum of its proper divisors (1600127).

8000605 is a wasteful number, since it uses less digits than its factorization.

8000605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600126.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 8000605 is about 2828.5340726249. The cubic root of 8000605 is about 200.0050415396.

It can be divided in two parts, 8000 and 605, that multiplied together give a square (4840000 = 2200²).

The spelling of 8000605 in words is "eight million, six hundred five", and thus it is an aban number.