3697591 has 2 divisors, whose sum is σ = 3697592. Its totient is φ = 3697590.

The previous prime is 3697583. The next prime is 3697633. The reversal of 3697591 is 1957963.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3697591 - 2³ = 3697583 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3697511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1848795 + 1848796.

It is an arithmetic number, because the mean of its divisors is an integer number (1848796).

Almost surely, 2^3697591 is an apocalyptic number.

3697591 is a deficient number, since it is larger than the sum of its proper divisors (1).

3697591 is an equidigital number, since it uses as much as digits as its factorization.

3697591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 40.

The square root of 3697591 is about 1922.9121144764. The cubic root of 3697591 is about 154.6344629453.

The spelling of 3697591 in words is "three million, six hundred ninety-seven thousand, five hundred ninety-one".