3877749 has 6 divisors (see below), whose sum is σ = 5601206. Its totient is φ = 2585160.

The previous prime is 3877733. The next prime is 3877763. The reversal of 3877749 is 9477783.

It can be written as a sum of positive squares in only one way, i.e., 2480625 + 1397124 = 1575^2 + 1182^2 .

It is not a de Polignac number, because 3877749 - 2⁴ = 3877733 is a prime.

It is a Duffinian number.

3877749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3877789) 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, 215422 + ... + 215439.

Almost surely, 2^3877749 is an apocalyptic number.

It is an amenable number.

3877749 is a deficient number, since it is larger than the sum of its proper divisors (1723457).

3877749 is a wasteful number, since it uses less digits than its factorization.

3877749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430867 (or 430864 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 3877749 is about 1969.2000914077. The cubic root of 3877749 is about 157.1061664437.

It can be divided in two parts, 387774 and 9, that added together give a palindrome (387783).

The spelling of 3877749 in words is "three million, eight hundred seventy-seven thousand, seven hundred forty-nine".