2816261 has 8 divisors (see below), whose sum is σ = 3279744. Its totient is φ = 2368080.

The previous prime is 2816251. The next prime is 2816263. The reversal of 2816261 is 1626182.

2816261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2816261 - 2⁶ = 2816197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2816261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2816263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3425 + ... + 4166.

It is an arithmetic number, because the mean of its divisors is an integer number (409968).

2^2816261 is an apocalyptic number.

It is an amenable number.

2816261 is a deficient number, since it is larger than the sum of its proper divisors (463483).

2816261 is an equidigital number, since it uses as much as digits as its factorization.

2816261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7651.

The product of its digits is 1152, while the sum is 26.

The square root of 2816261 is about 1678.1719220628. The cubic root of 2816261 is about 141.2182960667.

The spelling of 2816261 in words is "two million, eight hundred sixteen thousand, two hundred sixty-one".