3745997 has 2 divisors, whose sum is σ = 3745998. Its totient is φ = 3745996.

The previous prime is 3745961. The next prime is 3745999. The reversal of 3745997 is 7995473.

It is a happy number.

3745997 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 can be written as a sum of positive squares in only one way, i.e., 2937796 + 808201 = 1714^2 + 899^2 .

It is a cyclic number.

It is not a de Polignac number, because 3745997 - 2¹⁶ = 3680461 is a prime.

Together with 3745999, 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 (3745999) 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, 1872998 + 1872999.

It is an arithmetic number, because the mean of its divisors is an integer number (1872999).

Almost surely, 2^3745997 is an apocalyptic number.

It is an amenable number.

3745997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3745997 is an equidigital number, since it uses as much as digits as its factorization.

3745997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 44.

The square root of 3745997 is about 1935.4578269753. The cubic root of 3745997 is about 155.3063244970.

The spelling of 3745997 in words is "three million, seven hundred forty-five thousand, nine hundred ninety-seven".