409073 has 4 divisors (see below), whose sum is σ = 467520. Its totient is φ = 350628.

The previous prime is 409069. The next prime is 409081. The reversal of 409073 is 370904.

409073 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 409073 - 2² = 409069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409033) 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, 29213 + ... + 29226.

It is an arithmetic number, because the mean of its divisors is an integer number (116880).

2⁴⁰⁹⁰⁷³ is an apocalyptic number.

It is an amenable number.

409073 is a deficient number, since it is larger than the sum of its proper divisors (58447).

409073 is an equidigital number, since it uses as much as digits as its factorization.

409073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58446.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 409073 is about 639.5881487332. The cubic root of 409073 is about 74.2335571823.

Adding to 409073 its reverse (370904), we get a palindrome (779977).

The spelling of 409073 in words is "four hundred nine thousand, seventy-three".