2405723 has 8 divisors (see below), whose sum is σ = 2581200. Its totient is φ = 2235168.

The previous prime is 2405707. The next prime is 2405729. The reversal of 2405723 is 3275042.

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

It is a cyclic number.

It is not a de Polignac number, because 2405723 - 2⁴ = 2405707 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 4 + 0 + 5 + 7³ + 2²¹ + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2405729) 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, 188 + ... + 2201.

It is an arithmetic number, because the mean of its divisors is an integer number (322650).

2^2405723 is an apocalyptic number.

2405723 is a deficient number, since it is larger than the sum of its proper divisors (175477).

2405723 is a wasteful number, since it uses less digits than its factorization.

2405723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2405723 is about 1551.0393289662. The cubic root of 2405723 is about 133.9929267819.

The spelling of 2405723 in words is "two million, four hundred five thousand, seven hundred twenty-three".