3877939 has 4 divisors (see below), whose sum is σ = 4176256. Its totient is φ = 3579624.

The previous prime is 3877927. The next prime is 3877943. The reversal of 3877939 is 9397783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9397783 = 1549 ⋅6067.

It is a cyclic number.

It is not a de Polignac number, because 3877939 - 2²¹ = 1780787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3877999) 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, 149139 + ... + 149164.

It is an arithmetic number, because the mean of its divisors is an integer number (1044064).

Almost surely, 2^3877939 is an apocalyptic number.

3877939 is a deficient number, since it is larger than the sum of its proper divisors (298317).

3877939 is a wasteful number, since it uses less digits than its factorization.

3877939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298316.

The product of its digits is 285768, while the sum is 46.

The square root of 3877939 is about 1969.2483337558. The cubic root of 3877939 is about 157.1087323382.

It can be divided in two parts, 38 and 77939, that added together give a palindrome (77977).

The spelling of 3877939 in words is "three million, eight hundred seventy-seven thousand, nine hundred thirty-nine".