409795447 has 4 divisors (see below), whose sum is σ = 409873240. Its totient is φ = 409717656.

The previous prime is 409795423. The next prime is 409795459. The reversal of 409795447 is 744597904.

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 409795447 - 2¹¹ = 409793399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 409795447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409795847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30372 + ... + 41737.

It is an arithmetic number, because the mean of its divisors is an integer number (102468310).

Almost surely, 2^409795447 is an apocalyptic number.

409795447 is a deficient number, since it is larger than the sum of its proper divisors (77793).

409795447 is an equidigital number, since it uses as much as digits as its factorization.

409795447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77792.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 409795447 is about 20243.4050248470. The cubic root of 409795447 is about 742.7723175914.

The spelling of 409795447 in words is "four hundred nine million, seven hundred ninety-five thousand, four hundred forty-seven".