3747397 has 4 divisors (see below), whose sum is σ = 3848716. Its totient is φ = 3646080.

The previous prime is 3747391. The next prime is 3747431. The reversal of 3747397 is 7937473.

It is a happy number.

3747397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1515361 + 2232036 = 1231^2 + 1494^2 .

It is a cyclic number.

It is not a de Polignac number, because 3747397 - 2¹⁵ = 3714629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3747391) 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 in 3 ways as a sum of consecutive naturals, for example, 50604 + ... + 50677.

It is an arithmetic number, because the mean of its divisors is an integer number (962179).

Almost surely, 2^3747397 is an apocalyptic number.

3747397 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3747397 is a deficient number, since it is larger than the sum of its proper divisors (101319).

3747397 is a wasteful number, since it uses less digits than its factorization.

3747397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101318.

The product of its digits is 111132, while the sum is 40.

The square root of 3747397 is about 1935.8194647229. The cubic root of 3747397 is about 155.3256697495.

The spelling of 3747397 in words is "three million, seven hundred forty-seven thousand, three hundred ninety-seven".