406725 has 48 divisors (see below), whose sum is σ = 803520. Its totient is φ = 179200.

The previous prime is 406717. The next prime is 406729. The reversal of 406725 is 527604.

It is a happy number.

It is not a de Polignac number, because 406725 - 2³ = 406717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 406695 and 406704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14011 + ... + 14039.

It is an arithmetic number, because the mean of its divisors is an integer number (16740).

2⁴⁰⁶⁷²⁵ is an apocalyptic number.

It is an amenable number.

406725 is a deficient number, since it is larger than the sum of its proper divisors (396795).

406725 is a wasteful number, since it uses less digits than its factorization.

406725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 406725 is about 637.7499509996. The cubic root of 406725 is about 74.0912558137.

The spelling of 406725 in words is "four hundred six thousand, seven hundred twenty-five".