2804261 has 4 divisors (see below), whose sum is σ = 2808000. Its totient is φ = 2800524.

The previous prime is 2804257. The next prime is 2804273. The reversal of 2804261 is 1624082.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2804261 - 2² = 2804257 is a prime.

It is a super-2 number, since 2×2804261² = 15727759512242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2804251) 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, 311 + ... + 2388.

It is an arithmetic number, because the mean of its divisors is an integer number (702000).

2^2804261 is an apocalyptic number.

It is an amenable number.

2804261 is a deficient number, since it is larger than the sum of its proper divisors (3739).

2804261 is a wasteful number, since it uses less digits than its factorization.

2804261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2804261 is about 1674.5927863215. The cubic root of 2804261 is about 141.0174349280.

The spelling of 2804261 in words is "two million, eight hundred four thousand, two hundred sixty-one".