409590479 has 4 divisors (see below), whose sum is σ = 410563800. Its totient is φ = 408617160.

The previous prime is 409590473. The next prime is 409590487. The reversal of 409590479 is 974095904.

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

It is a cyclic number.

It is not a de Polignac number, because 409590479 - 2¹⁶ = 409524943 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 (409590473) 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 3 ways as a sum of consecutive naturals, for example, 486029 + ... + 486870.

It is an arithmetic number, because the mean of its divisors is an integer number (102640950).

Almost surely, 2^409590479 is an apocalyptic number.

409590479 is a deficient number, since it is larger than the sum of its proper divisors (973321).

409590479 is an equidigital number, since it uses as much as digits as its factorization.

409590479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973320.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 409590479 is about 20238.3418046044. The cubic root of 409590479 is about 742.6484590929.

The spelling of 409590479 in words is "four hundred nine million, five hundred ninety thousand, four hundred seventy-nine".