2084405 has 4 divisors (see below), whose sum is σ = 2501292. Its totient is φ = 1667520.

The previous prime is 2084393. The next prime is 2084413. The reversal of 2084405 is 5044802.

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 850084 + 1234321 = 922^2 + 1111^2 .

It is not a de Polignac number, because 2084405 - 2⁴ = 2084389 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208436 + ... + 208445.

It is an arithmetic number, because the mean of its divisors is an integer number (625323).

2^2084405 is an apocalyptic number.

It is an amenable number.

2084405 is a deficient number, since it is larger than the sum of its proper divisors (416887).

2084405 is an equidigital number, since it uses as much as digits as its factorization.

2084405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416886.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2084405 is about 1443.7468614685. The cubic root of 2084405 is about 127.7401343990.

The spelling of 2084405 in words is "two million, eighty-four thousand, four hundred five".