3748505 has 4 divisors (see below), whose sum is σ = 4498212. Its totient is φ = 2998800.

The previous prime is 3748499. The next prime is 3748519. The reversal of 3748505 is 5058473.

3748505 = T₁₂₂₂ + T₁₂₂₃ + ... + T₁₂₂₆.

It is a happy number.

3748505 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: 5058473 = 7 ⋅722639.

It can be written as a sum of positive squares in 2 ways, for example, as 2334784 + 1413721 = 1528^2 + 1189^2 .

It is not a de Polignac number, because 3748505 - 2⁶ = 3748441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 374846 + ... + 374855.

It is an arithmetic number, because the mean of its divisors is an integer number (1124553).

Almost surely, 2^3748505 is an apocalyptic number.

It is an amenable number.

3748505 is a deficient number, since it is larger than the sum of its proper divisors (749707).

3748505 is an equidigital number, since it uses as much as digits as its factorization.

3748505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749706.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 3748505 is about 1936.1056272838. The cubic root of 3748505 is about 155.3409767197.

Subtracting from 3748505 its sum of digits (32), we obtain a palindrome (3748473).

The spelling of 3748505 in words is "three million, seven hundred forty-eight thousand, five hundred five".