3747841 has 4 divisors (see below), whose sum is σ = 3849172. Its totient is φ = 3646512.

The previous prime is 3747833. The next prime is 3747847. The reversal of 3747841 is 1487473.

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 3591025 + 156816 = 1895^2 + 396^2 .

It is a cyclic number.

It is not a de Polignac number, because 3747841 - 2³ = 3747833 is a prime.

It is a super-2 number, since 2×3747841² = 28092624322562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3747797 and 3747806.

It is not an unprimeable number, because it can be changed into a prime (3747847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50610 + ... + 50683.

It is an arithmetic number, because the mean of its divisors is an integer number (962293).

It is a Proth number, since it is equal to 915 ⋅ 2¹² + 1 and 915 < 2¹².

Almost surely, 2^3747841 is an apocalyptic number.

It is an amenable number.

3747841 is a deficient number, since it is larger than the sum of its proper divisors (101331).

3747841 is a wasteful number, since it uses less digits than its factorization.

3747841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101330.

The product of its digits is 18816, while the sum is 34.

The square root of 3747841 is about 1935.9341414418. The cubic root of 3747841 is about 155.3318039518.

The spelling of 3747841 in words is "three million, seven hundred forty-seven thousand, eight hundred forty-one".