2005463723 has 4 divisors (see below), whose sum is σ = 2005608528. Its totient is φ = 2005318920.

The previous prime is 2005463711. The next prime is 2005463729. The reversal of 2005463723 is 3273645002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3273645002 = 2 ⋅1636822501.

It is a cyclic number.

It is not a de Polignac number, because 2005463723 - 2¹⁰ = 2005462699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2005463723.

It is not an unprimeable number, because it can be changed into a prime (2005463729) 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, 49136 + ... + 80157.

It is an arithmetic number, because the mean of its divisors is an integer number (501402132).

Almost surely, 2^2005463723 is an apocalyptic number.

2005463723 is a deficient number, since it is larger than the sum of its proper divisors (144805).

2005463723 is a wasteful number, since it uses less digits than its factorization.

2005463723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144804.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 2005463723 is about 44782.4041672619. The cubic root of 2005463723 is about 1261.0673166501.

The spelling of 2005463723 in words is "two billion, five million, four hundred sixty-three thousand, seven hundred twenty-three".