406237 has 4 divisors (see below), whose sum is σ = 437500. Its totient is φ = 374976.

The previous prime is 406207. The next prime is 406247. The reversal of 406237 is 732604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155236 + 251001 = 394^2 + 501^2 .

It is a cyclic number.

It is not a de Polignac number, because 406237 - 2¹¹ = 404189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15612 + ... + 15637.

It is an arithmetic number, because the mean of its divisors is an integer number (109375).

2⁴⁰⁶²³⁷ is an apocalyptic number.

It is an amenable number.

406237 is a deficient number, since it is larger than the sum of its proper divisors (31263).

406237 is a wasteful number, since it uses less digits than its factorization.

406237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31262.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 406237 is about 637.3672410785. The cubic root of 406237 is about 74.0616117028.

The spelling of 406237 in words is "four hundred six thousand, two hundred thirty-seven".