4023705 has 16 divisors (see below), whose sum is σ = 7357824. Its totient is φ = 1839360.

The previous prime is 4023703. The next prime is 4023727. The reversal of 4023705 is 5073204.

It is a happy number.

It is not a de Polignac number, because 4023705 - 2¹ = 4023703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (4023703) 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 15 ways as a sum of consecutive naturals, for example, 19056 + ... + 19265.

It is an arithmetic number, because the mean of its divisors is an integer number (459864).

Almost surely, 2^4023705 is an apocalyptic number.

It is an amenable number.

4023705 is a deficient number, since it is larger than the sum of its proper divisors (3334119).

4023705 is a wasteful number, since it uses less digits than its factorization.

4023705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38336.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 4023705 is about 2005.9174958108. The cubic root of 4023705 is about 159.0530656308.

Adding to 4023705 its reverse (5073204), we get a palindrome (9096909).

The spelling of 4023705 in words is "four million, twenty-three thousand, seven hundred five".