3697949 has 2 divisors, whose sum is σ = 3697950. Its totient is φ = 3697948.

The previous prime is 3697933. The next prime is 3697997. The reversal of 3697949 is 9497963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3541924 + 156025 = 1882^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 3697949 - 2⁴ = 3697933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3697909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1848974 + 1848975.

It is an arithmetic number, because the mean of its divisors is an integer number (1848975).

Almost surely, 2^3697949 is an apocalyptic number.

It is an amenable number.

3697949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3697949 is an equidigital number, since it uses as much as digits as its factorization.

3697949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367416, while the sum is 47.

The square root of 3697949 is about 1923.0052002010. The cubic root of 3697949 is about 154.6394533432.

The spelling of 3697949 in words is "three million, six hundred ninety-seven thousand, nine hundred forty-nine".