408723 has 8 divisors (see below), whose sum is σ = 622848. Its totient is φ = 233544.

The previous prime is 408719. The next prime is 408743. The reversal of 408723 is 327804.

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

It is not a de Polignac number, because 408723 - 2² = 408719 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 408693 and 408702.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 408723.

It is not an unprimeable number, because it can be changed into a prime (408703) 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, 9711 + ... + 9752.

It is an arithmetic number, because the mean of its divisors is an integer number (77856).

2⁴⁰⁸⁷²³ is an apocalyptic number.

408723 is a deficient number, since it is larger than the sum of its proper divisors (214125).

408723 is a wasteful number, since it uses less digits than its factorization.

408723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19473.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 408723 is about 639.3144766076. The cubic root of 408723 is about 74.2123799039.

The spelling of 408723 in words is "four hundred eight thousand, seven hundred twenty-three".