4026805 has 8 divisors (see below), whose sum is σ = 4887000. Its totient is φ = 3184896.

The previous prime is 4026791. The next prime is 4026823. The reversal of 4026805 is 5086204.

It can be written as a sum of positive squares in 4 ways, for example, as 439569 + 3587236 = 663^2 + 1894^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4026805 - 2⁷ = 4026677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4026805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4080 + ... + 4969.

It is an arithmetic number, because the mean of its divisors is an integer number (610875).

Almost surely, 2^4026805 is an apocalyptic number.

It is an amenable number.

4026805 is a deficient number, since it is larger than the sum of its proper divisors (860195).

4026805 is an equidigital number, since it uses as much as digits as its factorization.

4026805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 4026805 is about 2006.6900607717. The cubic root of 4026805 is about 159.0939017866.

The spelling of 4026805 in words is "four million, twenty-six thousand, eight hundred five".