2604169 has 4 divisors (see below), whose sum is σ = 2619396. Its totient is φ = 2588944.

The previous prime is 2604167. The next prime is 2604187. The reversal of 2604169 is 9614062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9614062 = 2 ⋅4807031.

It can be written as a sum of positive squares in 2 ways, for example, as 2433600 + 170569 = 1560^2 + 413^2 .

It is a cyclic number.

It is not a de Polignac number, because 2604169 - 2¹ = 2604167 is a prime.

It is a super-2 number, since 2×2604169² = 13563392361122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2604163) 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, 7354 + ... + 7699.

It is an arithmetic number, because the mean of its divisors is an integer number (654849).

2^2604169 is an apocalyptic number.

It is an amenable number.

2604169 is a deficient number, since it is larger than the sum of its proper divisors (15227).

2604169 is a wasteful number, since it uses less digits than its factorization.

2604169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15226.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2604169 is about 1613.7437838765. The cubic root of 2604169 is about 137.5803431279.

The spelling of 2604169 in words is "two million, six hundred four thousand, one hundred sixty-nine".