404297 has 4 divisors (see below), whose sum is σ = 405636. Its totient is φ = 402960.

The previous prime is 404291. The next prime is 404309. The reversal of 404297 is 792404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 241081 + 163216 = 491^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 404297 - 2¹⁴ = 387913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404291) 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, 23 + ... + 899.

It is an arithmetic number, because the mean of its divisors is an integer number (101409).

2⁴⁰⁴²⁹⁷ is an apocalyptic number.

It is an amenable number.

404297 is a deficient number, since it is larger than the sum of its proper divisors (1339).

404297 is an equidigital number, since it uses as much as digits as its factorization.

404297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 404297 is about 635.8435342126. The cubic root of 404297 is about 73.9435288668.

The spelling of 404297 in words is "four hundred four thousand, two hundred ninety-seven".