406673 has 2 divisors, whose sum is σ = 406674. Its totient is φ = 406672.

The previous prime is 406661. The next prime is 406697. The reversal of 406673 is 376604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253009 + 153664 = 503^2 + 392^2 .

It is a cyclic number.

It is not a de Polignac number, because 406673 - 2¹⁴ = 390289 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (406633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203336 + 203337.

It is an arithmetic number, because the mean of its divisors is an integer number (203337).

2⁴⁰⁶⁶⁷³ is an apocalyptic number.

It is an amenable number.

406673 is a deficient number, since it is larger than the sum of its proper divisors (1).

406673 is an equidigital number, since it uses as much as digits as its factorization.

406673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 406673 is about 637.7091813672. The cubic root of 406673 is about 74.0880981441.

The spelling of 406673 in words is "four hundred six thousand, six hundred seventy-three".