3587891 has 2 divisors, whose sum is σ = 3587892. Its totient is φ = 3587890.

The previous prime is 3587879. The next prime is 3587923. The reversal of 3587891 is 1987853.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3587891 - 2¹⁰ = 3586867 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3587821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1793945 + 1793946.

It is an arithmetic number, because the mean of its divisors is an integer number (1793946).

Almost surely, 2^3587891 is an apocalyptic number.

3587891 is a deficient number, since it is larger than the sum of its proper divisors (1).

3587891 is an equidigital number, since it uses as much as digits as its factorization.

3587891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 3587891 is about 1894.1729065743. The cubic root of 3587891 is about 153.0898556579.

The spelling of 3587891 in words is "three million, five hundred eighty-seven thousand, eight hundred ninety-one".