2835661 has 2 divisors, whose sum is σ = 2835662. Its totient is φ = 2835660.

The previous prime is 2835653. The next prime is 2835667. The reversal of 2835661 is 1665382.

2835661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 630436 = 1485^2 + 794^2 .

It is a cyclic number.

It is not a de Polignac number, because 2835661 - 2³ = 2835653 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2835667) 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 as a sum of consecutive naturals, namely, 1417830 + 1417831.

It is an arithmetic number, because the mean of its divisors is an integer number (1417831).

2^2835661 is an apocalyptic number.

It is an amenable number.

2835661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2835661 is an equidigital number, since it uses as much as digits as its factorization.

2835661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 2835661 is about 1683.9421011424. The cubic root of 2835661 is about 141.5418181869.

The spelling of 2835661 in words is "two million, eight hundred thirty-five thousand, six hundred sixty-one".