4004723 has 4 divisors (see below), whose sum is σ = 4009800. Its totient is φ = 3999648.

The previous prime is 4004717. The next prime is 4004731. The reversal of 4004723 is 3274004.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4004723 - 2⁶ = 4004659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4004695 and 4004704.

It is not an unprimeable number, because it can be changed into a prime (4004713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073 + ... + 3026.

It is an arithmetic number, because the mean of its divisors is an integer number (1002450).

Almost surely, 2^4004723 is an apocalyptic number.

4004723 is a deficient number, since it is larger than the sum of its proper divisors (5077).

4004723 is an equidigital number, since it uses as much as digits as its factorization.

4004723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 4004723 is about 2001.1804016630. The cubic root of 4004723 is about 158.8025580826.

Adding to 4004723 its reverse (3274004), we get a palindrome (7278727).

The spelling of 4004723 in words is "four million, four thousand, seven hundred twenty-three".