406697 has 2 divisors, whose sum is σ = 406698. Its totient is φ = 406696.

The previous prime is 406673. The next prime is 406699. The reversal of 406697 is 796604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 326041 + 80656 = 571^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 406697 - 2⁶ = 406633 is a prime.

Together with 406699, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 406697.

It is not a weakly prime, because it can be changed into another prime (406699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203348 + 203349.

It is an arithmetic number, because the mean of its divisors is an integer number (203349).

2⁴⁰⁶⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

406697 is a deficient number, since it is larger than the sum of its proper divisors (1).

406697 is an equidigital number, since it uses as much as digits as its factorization.

406697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 406697 is about 637.7279984445. The cubic root of 406697 is about 74.0895555635.

The spelling of 406697 in words is "four hundred six thousand, six hundred ninety-seven".