409611613 has 8 divisors (see below), whose sum is σ = 419175000. Its totient is φ = 400116288.

The previous prime is 409611611. The next prime is 409611619. The reversal of 409611613 is 316116904.

It can be written as a sum of positive squares in 4 ways, for example, as 298667524 + 110944089 = 17282^2 + 10533^2 .

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 409611613 - 2¹ = 409611611 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 (409611611) 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, 4738 + ... + 29011.

It is an arithmetic number, because the mean of its divisors is an integer number (52396875).

Almost surely, 2^409611613 is an apocalyptic number.

It is an amenable number.

409611613 is a deficient number, since it is larger than the sum of its proper divisors (9563387).

409611613 is a wasteful number, since it uses less digits than its factorization.

409611613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34031.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 409611613 is about 20238.8639256259. The cubic root of 409611613 is about 742.6612319017.

The spelling of 409611613 in words is "four hundred nine million, six hundred eleven thousand, six hundred thirteen".