408437 has 2 divisors, whose sum is σ = 408438. Its totient is φ = 408436.

The previous prime is 408433. The next prime is 408461. The reversal of 408437 is 734804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329476 + 78961 = 574^2 + 281^2 .

It is a cyclic number.

It is not a de Polignac number, because 408437 - 2² = 408433 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204218 + 204219.

It is an arithmetic number, because the mean of its divisors is an integer number (204219).

2⁴⁰⁸⁴³⁷ is an apocalyptic number.

It is an amenable number.

408437 is a deficient number, since it is larger than the sum of its proper divisors (1).

408437 is an equidigital number, since it uses as much as digits as its factorization.

408437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 408437 is about 639.0907603776. The cubic root of 408437 is about 74.1950660644.

The spelling of 408437 in words is "four hundred eight thousand, four hundred thirty-seven".