406969 has 2 divisors, whose sum is σ = 406970. Its totient is φ = 406968.

The previous prime is 406951. The next prime is 406981. The reversal of 406969 is 969604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316969 + 90000 = 563^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 406969 - 2¹⁷ = 275897 is a prime.

It is a super-2 number, since 2×406969² = 331247533922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (406169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203484 + 203485.

It is an arithmetic number, because the mean of its divisors is an integer number (203485).

2⁴⁰⁶⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

406969 is a deficient number, since it is larger than the sum of its proper divisors (1).

406969 is an equidigital number, since it uses as much as digits as its factorization.

406969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 406969 is about 637.9412198628. The cubic root of 406969 is about 74.1060689778.

The spelling of 406969 in words is "four hundred six thousand, nine hundred sixty-nine".