2006453 has 4 divisors (see below), whose sum is σ = 2015520. Its totient is φ = 1997388.

The previous prime is 2006447. The next prime is 2006461. The reversal of 2006453 is 3546002.

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 a cyclic number.

It is not a de Polignac number, because 2006453 - 2⁴ = 2006437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006443) 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, 4193 + ... + 4646.

It is an arithmetic number, because the mean of its divisors is an integer number (503880).

2^2006453 is an apocalyptic number.

It is an amenable number.

2006453 is a deficient number, since it is larger than the sum of its proper divisors (9067).

2006453 is an equidigital number, since it uses as much as digits as its factorization.

2006453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9066.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2006453 is about 1416.4932050667. The cubic root of 2006453 is about 126.1274640240.

The spelling of 2006453 in words is "two million, six thousand, four hundred fifty-three".