406573 has 2 divisors, whose sum is σ = 406574. Its totient is φ = 406572.

The previous prime is 406561. The next prime is 406577. The reversal of 406573 is 375604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381924 + 24649 = 618^2 + 157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203286 + 203287.

It is an arithmetic number, because the mean of its divisors is an integer number (203287).

2⁴⁰⁶⁵⁷³ is an apocalyptic number.

It is an amenable number.

406573 is a deficient number, since it is larger than the sum of its proper divisors (1).

406573 is an equidigital number, since it uses as much as digits as its factorization.

406573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 406573 is about 637.6307709012. The cubic root of 406573 is about 74.0820249459.

It can be divided in two parts, 406 and 573, that added together give a palindrome (979).

The spelling of 406573 in words is "four hundred six thousand, five hundred seventy-three".