409869559 has 8 divisors (see below), whose sum is σ = 447297552. Its totient is φ = 372469440.

The previous prime is 409869547. The next prime is 409869587. The reversal of 409869559 is 955968904.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 409869559 - 2⁵ = 409869527 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 (409866559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34587 + ... + 44899.

It is an arithmetic number, because the mean of its divisors is an integer number (55912194).

Almost surely, 2^409869559 is an apocalyptic number.

409869559 is a deficient number, since it is larger than the sum of its proper divisors (37427993).

409869559 is a wasteful number, since it uses less digits than its factorization.

409869559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13937.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The square root of 409869559 is about 20245.2354641777. The cubic root of 409869559 is about 742.8170919817.

It can be divided in two parts, 409 and 869559, that added together give a palindrome (869968).

The spelling of 409869559 in words is "four hundred nine million, eight hundred sixty-nine thousand, five hundred fifty-nine".