2723023 has 8 divisors (see below), whose sum is σ = 2881520. Its totient is φ = 2573208.

The previous prime is 2723003. The next prime is 2723033. The reversal of 2723023 is 3203272.

It is a happy number.

It is not a de Polignac number, because 2723023 - 2²¹ = 625871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

2723023 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2723003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6661 + ... + 7057.

It is an arithmetic number, because the mean of its divisors is an integer number (360190).

2^2723023 is an apocalyptic number.

2723023 is a deficient number, since it is larger than the sum of its proper divisors (158497).

2723023 is an frugal number, since it uses more digits than its factorization.

2723023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 2723023 is about 1650.1584772379. The cubic root of 2723023 is about 139.6423353345.

Adding to 2723023 its reverse (3203272), we get a palindrome (5926295).

Subtracting 2723023 from its reverse (3203272), we obtain a square (480249 = 693²).

The spelling of 2723023 in words is "two million, seven hundred twenty-three thousand, twenty-three".