3877491 has 16 divisors (see below), whose sum is σ = 5326848. Its totient is φ = 2508000.

The previous prime is 3877487. The next prime is 3877507. The reversal of 3877491 is 1947783.

It is not a de Polignac number, because 3877491 - 2² = 3877487 is a prime.

3877491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3877441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20206 + ... + 20396.

It is an arithmetic number, because the mean of its divisors is an integer number (332928).

Almost surely, 2^3877491 is an apocalyptic number.

3877491 is a deficient number, since it is larger than the sum of its proper divisors (1449357).

3877491 is a wasteful number, since it uses less digits than its factorization.

3877491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362.

The product of its digits is 42336, while the sum is 39.

The square root of 3877491 is about 1969.1345814850. The cubic root of 3877491 is about 157.1026820950.

The spelling of 3877491 in words is "three million, eight hundred seventy-seven thousand, four hundred ninety-one".