3748257 has 6 divisors (see below), whose sum is σ = 5414162. Its totient is φ = 2498832.

The previous prime is 3748243. The next prime is 3748289. The reversal of 3748257 is 7528473.

It can be written as a sum of positive squares in only one way, i.e., 2099601 + 1648656 = 1449^2 + 1284^2 .

It is not a de Polignac number, because 3748257 - 2⁶ = 3748193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3748207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208228 + ... + 208245.

Almost surely, 2^3748257 is an apocalyptic number.

It is an amenable number.

3748257 is a deficient number, since it is larger than the sum of its proper divisors (1665905).

3748257 is a wasteful number, since it uses less digits than its factorization.

3748257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416479 (or 416476 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 3748257 is about 1936.0415801320. The cubic root of 3748257 is about 155.3375508729.

It can be divided in two parts, 3748 and 257, that added together give a triangular number (4005 = T₈₉).

The spelling of 3748257 in words is "three million, seven hundred forty-eight thousand, two hundred fifty-seven".