3748521 has 8 divisors (see below), whose sum is σ = 5712064. Its totient is φ = 2142000.

The previous prime is 3748519. The next prime is 3748523. The reversal of 3748521 is 1258473.

3748521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3748519) and next prime (3748523).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3748521 - 2¹ = 3748519 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3748523) 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 7 ways as a sum of consecutive naturals, for example, 89230 + ... + 89271.

It is an arithmetic number, because the mean of its divisors is an integer number (714008).

Almost surely, 2^3748521 is an apocalyptic number.

It is an amenable number.

3748521 is a deficient number, since it is larger than the sum of its proper divisors (1963543).

3748521 is a wasteful number, since it uses less digits than its factorization.

3748521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178511.

The product of its digits is 6720, while the sum is 30.

The square root of 3748521 is about 1936.1097592854. The cubic root of 3748521 is about 155.3411977369.

The spelling of 3748521 in words is "three million, seven hundred forty-eight thousand, five hundred twenty-one".