2066465 has 4 divisors (see below), whose sum is σ = 2479764. Its totient is φ = 1653168.

The previous prime is 2066461. The next prime is 2066473. The reversal of 2066465 is 5646602.

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 1236544 + 829921 = 1112^2 + 911^2 .

It is a cyclic number.

It is not a de Polignac number, because 2066465 - 2² = 2066461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066461) 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, 206642 + ... + 206651.

It is an arithmetic number, because the mean of its divisors is an integer number (619941).

2^2066465 is an apocalyptic number.

It is an amenable number.

2066465 is a deficient number, since it is larger than the sum of its proper divisors (413299).

2066465 is an equidigital number, since it uses as much as digits as its factorization.

2066465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413298.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2066465 is about 1437.5204346374. The cubic root of 2066465 is about 127.3726011825.

The spelling of 2066465 in words is "two million, sixty-six thousand, four hundred sixty-five".