3877691 has 8 divisors (see below), whose sum is σ = 4116480. Its totient is φ = 3642408.

The previous prime is 3877681. The next prime is 3877703. The reversal of 3877691 is 1967783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3877691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3877631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1610 + ... + 3216.

It is an arithmetic number, because the mean of its divisors is an integer number (514560).

Almost surely, 2^3877691 is an apocalyptic number.

3877691 is a deficient number, since it is larger than the sum of its proper divisors (238789).

3877691 is a wasteful number, since it uses less digits than its factorization.

3877691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753.

The product of its digits is 63504, while the sum is 41.

The square root of 3877691 is about 1969.1853645607. The cubic root of 3877691 is about 157.1053831540.

The spelling of 3877691 in words is "three million, eight hundred seventy-seven thousand, six hundred ninety-one".