2872723 has 12 divisors (see below), whose sum is σ = 3488400. Its totient is φ = 2354352.

The previous prime is 2872721. The next prime is 2872729. The reversal of 2872723 is 3272782.

It is not a de Polignac number, because 2872723 - 2¹ = 2872721 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 8³ + 7⁶ + 2¹³ + 7⁶ + 2²¹ + 3¹² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2872721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148 + ... + 2401.

It is an arithmetic number, because the mean of its divisors is an integer number (290700).

2^2872723 is an apocalyptic number.

2872723 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2872723 is a deficient number, since it is larger than the sum of its proper divisors (615677).

2872723 is a wasteful number, since it uses less digits than its factorization.

2872723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586 (or 2579 counting only the distinct ones).

The product of its digits is 9408, while the sum is 31.

The square root of 2872723 is about 1694.9109121131. The cubic root of 2872723 is about 142.1558000338.

The spelling of 2872723 in words is "two million, eight hundred seventy-two thousand, seven hundred twenty-three".