3236861 has 2 divisors, whose sum is σ = 3236862. Its totient is φ = 3236860.

The previous prime is 3236791. The next prime is 3236873. The reversal of 3236861 is 1686323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3204100 + 32761 = 1790^2 + 181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3236861 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3236881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1618430 + 1618431.

It is an arithmetic number, because the mean of its divisors is an integer number (1618431).

Almost surely, 2^3236861 is an apocalyptic number.

It is an amenable number.

3236861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3236861 is an equidigital number, since it uses as much as digits as its factorization.

3236861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 3236861 is about 1799.1278442623. The cubic root of 3236861 is about 147.9249223544.

The spelling of 3236861 in words is "three million, two hundred thirty-six thousand, eight hundred sixty-one".