406395373 has 2 divisors, whose sum is σ = 406395374. Its totient is φ = 406395372.

The previous prime is 406395317. The next prime is 406395391. The reversal of 406395373 is 373593604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341399529 + 64995844 = 18477^2 + 8062^2 .

It is a cyclic number.

It is not a de Polignac number, because 406395373 - 2⁹ = 406394861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406395173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203197686 + 203197687.

It is an arithmetic number, because the mean of its divisors is an integer number (203197687).

Almost surely, 2^406395373 is an apocalyptic number.

It is an amenable number.

406395373 is a deficient number, since it is larger than the sum of its proper divisors (1).

406395373 is an equidigital number, since it uses as much as digits as its factorization.

406395373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 40.

The square root of 406395373 is about 20159.2503084812. The cubic root of 406395373 is about 740.7123485031.

The spelling of 406395373 in words is "four hundred six million, three hundred ninety-five thousand, three hundred seventy-three".