2428723 has 4 divisors (see below), whose sum is σ = 2649528. Its totient is φ = 2207920.

The previous prime is 2428711. The next prime is 2428729. The reversal of 2428723 is 3278242.

2428723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2428723 - 2¹³ = 2420531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2428691 and 2428700.

It is not an unprimeable number, because it can be changed into a prime (2428729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110386 + ... + 110407.

It is an arithmetic number, because the mean of its divisors is an integer number (662382).

2^2428723 is an apocalyptic number.

2428723 is a deficient number, since it is larger than the sum of its proper divisors (220805).

2428723 is a wasteful number, since it uses less digits than its factorization.

2428723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220804.

The product of its digits is 5376, while the sum is 28.

The square root of 2428723 is about 1558.4360750445. The cubic root of 2428723 is about 134.4185878427.

It can be divided in two parts, 24287 and 23, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 2428723 in words is "two million, four hundred twenty-eight thousand, seven hundred twenty-three".