2604331 has 4 divisors (see below), whose sum is σ = 2609464. Its totient is φ = 2599200.

The previous prime is 2604307. The next prime is 2604347. The reversal of 2604331 is 1334062.

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

It is a 5-Lehmer number, since φ(2604331) divides (2604331-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 2604331 - 2⁵ = 2604299 is a prime.

It is a super-2 number, since 2×2604331² = 13565079915122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2604299 and 2604308.

It is not an unprimeable number, because it can be changed into a prime (2604391) 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, 1710 + ... + 2851.

It is an arithmetic number, because the mean of its divisors is an integer number (652366).

2^2604331 is an apocalyptic number.

2604331 is a deficient number, since it is larger than the sum of its proper divisors (5133).

2604331 is an equidigital number, since it uses as much as digits as its factorization.

2604331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2604331 is about 1613.7939769376. The cubic root of 2604331 is about 137.5831959322.

Adding to 2604331 its reverse (1334062), we get a palindrome (3938393).

The spelling of 2604331 in words is "two million, six hundred four thousand, three hundred thirty-one".