3697997 has 2 divisors, whose sum is σ = 3697998. Its totient is φ = 3697996.

The previous prime is 3697949. The next prime is 3698029. The reversal of 3697997 is 7997963.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2725801 + 972196 = 1651^2 + 986^2 .

It is a cyclic number.

It is not a de Polignac number, because 3697997 - 2⁶ = 3697933 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 (3697907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1848998 + 1848999.

It is an arithmetic number, because the mean of its divisors is an integer number (1848999).

Almost surely, 2^3697997 is an apocalyptic number.

It is an amenable number.

3697997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3697997 is an equidigital number, since it uses as much as digits as its factorization.

3697997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 642978, while the sum is 50.

The square root of 3697997 is about 1923.0176806259. The cubic root of 3697997 is about 154.6401224223.

The spelling of 3697997 in words is "three million, six hundred ninety-seven thousand, nine hundred ninety-seven".