2810641 has 2 divisors, whose sum is σ = 2810642. Its totient is φ = 2810640.

The previous prime is 2810617. The next prime is 2810653. The reversal of 2810641 is 1460182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2772225 + 38416 = 1665^2 + 196^2 .

It is a cyclic number.

It is not a de Polignac number, because 2810641 - 2⁷ = 2810513 is a prime.

It is equal to p₂₀₄₀₉₇ and since 2810641 and 204097 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2810671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1405320 + 1405321.

It is an arithmetic number, because the mean of its divisors is an integer number (1405321).

2^2810641 is an apocalyptic number.

It is an amenable number.

2810641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2810641 is an equidigital number, since it uses as much as digits as its factorization.

2810641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 2810641 is about 1676.4966447923. The cubic root of 2810641 is about 141.1242972823.

The spelling of 2810641 in words is "two million, eight hundred ten thousand, six hundred forty-one".