406392673 has 2 divisors, whose sum is σ = 406392674. Its totient is φ = 406392672.

The previous prime is 406392659. The next prime is 406392677. The reversal of 406392673 is 376293604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244390689 + 162001984 = 15633^2 + 12728^2 .

It is a cyclic number.

It is not a de Polignac number, because 406392673 - 2¹⁷ = 406261601 is a prime.

It is not a weakly prime, because it can be changed into another prime (406392677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203196336 + 203196337.

It is an arithmetic number, because the mean of its divisors is an integer number (203196337).

Almost surely, 2^406392673 is an apocalyptic number.

It is an amenable number.

406392673 is a deficient number, since it is larger than the sum of its proper divisors (1).

406392673 is an equidigital number, since it uses as much as digits as its factorization.

406392673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 406392673 is about 20159.1833415940. The cubic root of 406392673 is about 740.7107081237.

The spelling of 406392673 in words is "four hundred six million, three hundred ninety-two thousand, six hundred seventy-three".