409351 has 2 divisors, whose sum is σ = 409352. Its totient is φ = 409350.

The previous prime is 409349. The next prime is 409369. The reversal of 409351 is 153904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 409351 - 2¹ = 409349 is a prime.

Together with 409349, it forms a pair of twin primes.

It is an Ulam number.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409391) 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 as a sum of consecutive naturals, namely, 204675 + 204676.

It is an arithmetic number, because the mean of its divisors is an integer number (204676).

2⁴⁰⁹³⁵¹ is an apocalyptic number.

409351 is a deficient number, since it is larger than the sum of its proper divisors (1).

409351 is an equidigital number, since it uses as much as digits as its factorization.

409351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 409351 is about 639.8054391766. The cubic root of 409351 is about 74.2503693860.

The spelling of 409351 in words is "four hundred nine thousand, three hundred fifty-one".