2723645285 has 8 divisors (see below), whose sum is σ = 3300735096. Its totient is φ = 2157342400.

The previous prime is 2723645279. The next prime is 2723645291. The reversal of 2723645285 is 5825463272.

It is a happy number.

2723645285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2723645279) and next prime (2723645291).

It can be written as a sum of positive squares in 4 ways, for example, as 404452321 + 2319192964 = 20111^2 + 48158^2 .

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

It is not a de Polignac number, because 2723645285 - 2¹² = 2723641189 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 2696174 + ... + 2697183.

It is an arithmetic number, because the mean of its divisors is an integer number (412591887).

Almost surely, 2^2723645285 is an apocalyptic number.

It is an amenable number.

2723645285 is a deficient number, since it is larger than the sum of its proper divisors (577089811).

2723645285 is a wasteful number, since it uses less digits than its factorization.

2723645285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393463.

The product of its digits is 806400, while the sum is 44.

The square root of 2723645285 is about 52188.5551150825. Note that the first 3 decimals coincide. The cubic root of 2723645285 is about 1396.5297188464.

The spelling of 2723645285 in words is "two billion, seven hundred twenty-three million, six hundred forty-five thousand, two hundred eighty-five".