409561003 has 8 divisors (see below), whose sum is σ = 411319296. Its totient is φ = 407807400.

The previous prime is 409560971. The next prime is 409561021. The reversal of 409561003 is 300165904.

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 409561003 - 2⁵ = 409560971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409561073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421308 + ... + 422278.

It is an arithmetic number, because the mean of its divisors is an integer number (51414912).

Almost surely, 2^409561003 is an apocalyptic number.

409561003 is a deficient number, since it is larger than the sum of its proper divisors (1758293).

409561003 is an equidigital number, since it uses as much as digits as its factorization.

409561003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 409561003 is about 20237.6135697863. The cubic root of 409561003 is about 742.6306438749.

The spelling of 409561003 in words is "four hundred nine million, five hundred sixty-one thousand, three".