3977749 has 6 divisors (see below), whose sum is σ = 4047810. Its totient is φ = 3908880.

The previous prime is 3977741. The next prime is 3977761. The reversal of 3977749 is 9477793.

3977749 is nontrivially palindromic in base 12.

3977749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 202500 + 3775249 = 450^2 + 1943^2 .

It is not a de Polignac number, because 3977749 - 2³ = 3977741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3977699 and 3977708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3977741) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3187 + ... + 4255.

It is an arithmetic number, because the mean of its divisors is an integer number (674635).

Almost surely, 2^3977749 is an apocalyptic number.

It is an amenable number.

3977749 is a deficient number, since it is larger than the sum of its proper divisors (70061).

3977749 is an equidigital number, since it uses as much as digits as its factorization.

3977749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1130 counting only the distinct ones).

The product of its digits is 333396, while the sum is 46.

The square root of 3977749 is about 1994.4294923612. The cubic root of 3977749 is about 158.4452138767.

The spelling of 3977749 in words is "three million, nine hundred seventy-seven thousand, seven hundred forty-nine".