3845749 has 4 divisors (see below), whose sum is σ = 3862080. Its totient is φ = 3829420.

The previous prime is 3845747. The next prime is 3845753. The reversal of 3845749 is 9475483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3845749 - 2¹ = 3845747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3845741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7807 + ... + 8284.

It is an arithmetic number, because the mean of its divisors is an integer number (965520).

Almost surely, 2^3845749 is an apocalyptic number.

It is an amenable number.

3845749 is a deficient number, since it is larger than the sum of its proper divisors (16331).

3845749 is a wasteful number, since it uses less digits than its factorization.

3845749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16330.

The product of its digits is 120960, while the sum is 40.

The square root of 3845749 is about 1961.0581327436. The cubic root of 3845749 is about 156.6728145065.

The spelling of 3845749 in words is "three million, eight hundred forty-five thousand, seven hundred forty-nine".