406775 has 12 divisors (see below), whose sum is σ = 515592. Its totient is φ = 318240.

The previous prime is 406739. The next prime is 406789. The reversal of 406775 is 577604.

It is not a de Polignac number, because 406775 - 2¹⁴ = 390391 is a prime.

It is a Duffinian number.

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 406775.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1172 + ... + 1478.

It is an arithmetic number, because the mean of its divisors is an integer number (42966).

2⁴⁰⁶⁷⁷⁵ is an apocalyptic number.

406775 is a deficient number, since it is larger than the sum of its proper divisors (108817).

406775 is a wasteful number, since it uses less digits than its factorization.

406775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 406775 is about 637.7891501115. The cubic root of 406775 is about 74.0942917807.

The spelling of 406775 in words is "four hundred six thousand, seven hundred seventy-five".