3609871 has 2 divisors, whose sum is σ = 3609872. Its totient is φ = 3609870.

The previous prime is 3609863. The next prime is 3609877. The reversal of 3609871 is 1789063.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3609871 - 2³ = 3609863 is a prime.

3609871 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3609877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804935 + 1804936.

It is an arithmetic number, because the mean of its divisors is an integer number (1804936).

Almost surely, 2^3609871 is an apocalyptic number.

3609871 is a deficient number, since it is larger than the sum of its proper divisors (1).

3609871 is an equidigital number, since it uses as much as digits as its factorization.

3609871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3609871 is about 1899.9660523283. The cubic root of 3609871 is about 153.4018371703.

The spelling of 3609871 in words is "three million, six hundred nine thousand, eight hundred seventy-one".