5866591 has 2 divisors, whose sum is σ = 5866592. Its totient is φ = 5866590.

The previous prime is 5866537. The next prime is 5866607. The reversal of 5866591 is 1956685.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5866591 - 2¹⁷ = 5735519 is a prime.

It is a super-2 number, since 2×5866591² = 68833779922562, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5866291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2933295 + 2933296.

It is an arithmetic number, because the mean of its divisors is an integer number (2933296).

Almost surely, 2^5866591 is an apocalyptic number.

5866591 is a deficient number, since it is larger than the sum of its proper divisors (1).

5866591 is an equidigital number, since it uses as much as digits as its factorization.

5866591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 40.

The square root of 5866591 is about 2422.1046633042. The cubic root of 5866591 is about 180.3551732024.

The spelling of 5866591 in words is "five million, eight hundred sixty-six thousand, five hundred ninety-one".