3749993 has 4 divisors (see below), whose sum is σ = 4038468. Its totient is φ = 3461520.

The previous prime is 3749971. The next prime is 3750001. The reversal of 3749993 is 3999473.

It is a happy number.

3749993 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 204304 + 3545689 = 452^2 + 1883^2 .

It is a cyclic number.

It is not a de Polignac number, because 3749993 - 2¹² = 3745897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3749093) 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, 144218 + ... + 144243.

It is an arithmetic number, because the mean of its divisors is an integer number (1009617).

Almost surely, 2^3749993 is an apocalyptic number.

It is an amenable number.

3749993 is a deficient number, since it is larger than the sum of its proper divisors (288475).

3749993 is a wasteful number, since it uses less digits than its factorization.

3749993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288474.

The product of its digits is 183708, while the sum is 44.

The square root of 3749993 is about 1936.4898657106. The cubic root of 3749993 is about 155.3615286282.

The spelling of 3749993 in words is "three million, seven hundred forty-nine thousand, nine hundred ninety-three".