3697849 has 2 divisors, whose sum is σ = 3697850. Its totient is φ = 3697848.

The previous prime is 3697847. The next prime is 3697853. The reversal of 3697849 is 9487963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3686400 + 11449 = 1920^2 + 107^2 .

It is an emirp because it is prime and its reverse (9487963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3697849 - 2¹ = 3697847 is a prime.

Together with 3697847, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3697799 and 3697808.

It is not a weakly prime, because it can be changed into another prime (3697843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1848924 + 1848925.

It is an arithmetic number, because the mean of its divisors is an integer number (1848925).

Almost surely, 2^3697849 is an apocalyptic number.

It is an amenable number.

3697849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3697849 is an equidigital number, since it uses as much as digits as its factorization.

3697849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 3697849 is about 1922.9791990555. The cubic root of 3697849 is about 154.6380594097.

The spelling of 3697849 in words is "three million, six hundred ninety-seven thousand, eight hundred forty-nine".