409097 has 4 divisors (see below), whose sum is σ = 440580. Its totient is φ = 377616.

The previous prime is 409081. The next prime is 409099. The reversal of 409097 is 790904.

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

It can be written as a sum of positive squares in 2 ways, for example, as 121801 + 287296 = 349^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 409097 - 2⁴ = 409081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15722 + ... + 15747.

It is an arithmetic number, because the mean of its divisors is an integer number (110145).

2⁴⁰⁹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

409097 is a deficient number, since it is larger than the sum of its proper divisors (31483).

409097 is a wasteful number, since it uses less digits than its factorization.

409097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31482.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 409097 is about 639.6069105318. The cubic root of 409097 is about 74.2350088959.

The spelling of 409097 in words is "four hundred nine thousand, ninety-seven".