3748643 has 4 divisors (see below), whose sum is σ = 3945960. Its totient is φ = 3551328.

The previous prime is 3748607. The next prime is 3748651. The reversal of 3748643 is 3468473.

3748643 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, and also an emirpimes, since its reverse is a distinct semiprime: 3468473 = 1249 ⋅2777.

It is not a de Polignac number, because 3748643 - 2⁸ = 3748387 is a prime.

It is a d-powerful number, because it can be written as 3⁶ + 7⁷ + 4⁵ + 8³ + 6⁷ + 4¹⁰ + 3¹³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3748603) 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, 98630 + ... + 98667.

It is an arithmetic number, because the mean of its divisors is an integer number (986490).

Almost surely, 2^3748643 is an apocalyptic number.

3748643 is a deficient number, since it is larger than the sum of its proper divisors (197317).

3748643 is a wasteful number, since it uses less digits than its factorization.

3748643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197316.

The product of its digits is 48384, while the sum is 35.

The square root of 3748643 is about 1936.1412655072. The cubic root of 3748643 is about 155.3428829723.

The spelling of 3748643 in words is "three million, seven hundred forty-eight thousand, six hundred forty-three".