406791 has 24 divisors (see below), whose sum is σ = 733824. Its totient is φ = 210960.

The previous prime is 406789. The next prime is 406807. The reversal of 406791 is 197604.

It is not a de Polignac number, because 406791 - 2¹ = 406789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 400 + ... + 986.

It is an arithmetic number, because the mean of its divisors is an integer number (30576).

2⁴⁰⁶⁷⁹¹ is an apocalyptic number.

406791 is a deficient number, since it is larger than the sum of its proper divisors (327033).

406791 is a wasteful number, since it uses less digits than its factorization.

406791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 608 counting only the distinct ones).

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

The square root of 406791 is about 637.8016933185. The cubic root of 406791 is about 74.0952632376.

The spelling of 406791 in words is "four hundred six thousand, seven hundred ninety-one".