406917 has 16 divisors (see below), whose sum is σ = 689280. Its totient is φ = 232416.

The previous prime is 406907. The next prime is 406951. The reversal of 406917 is 719604.

It is not a de Polignac number, because 406917 - 2⁷ = 406789 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 406917.

It is not an unprimeable number, because it can be changed into a prime (406907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888 + ... + 1265.

It is an arithmetic number, because the mean of its divisors is an integer number (43080).

2⁴⁰⁶⁹¹⁷ is an apocalyptic number.

It is an amenable number.

406917 is a deficient number, since it is larger than the sum of its proper divisors (282363).

406917 is a wasteful number, since it uses less digits than its factorization.

406917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 406917 is about 637.9004624548. The cubic root of 406917 is about 74.1029125705.

The spelling of 406917 in words is "four hundred six thousand, nine hundred seventeen".