3731591 has 2 divisors, whose sum is σ = 3731592. Its totient is φ = 3731590.

The previous prime is 3731579. The next prime is 3731593. The reversal of 3731591 is 1951373.

3731591 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 is a cyclic number.

It is not a de Polignac number, because 3731591 - 2⁶ = 3731527 is a prime.

Together with 3731593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3731593) 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, 1865795 + 1865796.

It is an arithmetic number, because the mean of its divisors is an integer number (1865796).

Almost surely, 2^3731591 is an apocalyptic number.

3731591 is a deficient number, since it is larger than the sum of its proper divisors (1).

3731591 is an equidigital number, since it uses as much as digits as its factorization.

3731591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835, while the sum is 29.

The square root of 3731591 is about 1931.7326419564. The cubic root of 3731591 is about 155.1069812952.

The spelling of 3731591 in words is "three million, seven hundred thirty-one thousand, five hundred ninety-one".