406827 has 12 divisors (see below), whose sum is σ = 622440. Its totient is φ = 255168.

The previous prime is 406817. The next prime is 406837. The reversal of 406827 is 728604.

It is an interprime number because it is at equal distance from previous prime (406817) and next prime (406837).

It is not a de Polignac number, because 406827 - 2⁴ = 406811 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 406827.

It is not an unprimeable number, because it can be changed into a prime (406807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1177 + ... + 1482.

It is an arithmetic number, because the mean of its divisors is an integer number (51870).

2⁴⁰⁶⁸²⁷ is an apocalyptic number.

406827 is a deficient number, since it is larger than the sum of its proper divisors (215613).

406827 is a wasteful number, since it uses less digits than its factorization.

406827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 406827 is about 637.8299146324. The cubic root of 406827 is about 74.0974489224.

It can be divided in two parts, 4068 and 27, that added together give a triangular number (4095 = T₉₀).

The spelling of 406827 in words is "four hundred six thousand, eight hundred twenty-seven".