3875749 has 4 divisors (see below), whose sum is σ = 3933664. Its totient is φ = 3817836.

The previous prime is 3875747. The next prime is 3875797. The reversal of 3875749 is 9475783.

It is a happy number.

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 3875749 - 2¹ = 3875747 is a prime.

It is a super-2 number, since 2×3875749² = 30042860622002, which contains 22 as substring.

It is a Duffinian number.

3875749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3875741) 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, 28857 + ... + 28990.

It is an arithmetic number, because the mean of its divisors is an integer number (983416).

Almost surely, 2^3875749 is an apocalyptic number.

It is an amenable number.

3875749 is a deficient number, since it is larger than the sum of its proper divisors (57915).

3875749 is an equidigital number, since it uses as much as digits as its factorization.

3875749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57914.

The product of its digits is 211680, while the sum is 43.

The square root of 3875749 is about 1968.6922055009. The cubic root of 3875749 is about 157.0791519423.

It can be divided in two parts, 3875 and 749, that added together give a square (4624 = 68²).

The spelling of 3875749 in words is "three million, eight hundred seventy-five thousand, seven hundred forty-nine".