3827661 has 8 divisors (see below), whose sum is σ = 5138400. Its totient is φ = 2534352.

The previous prime is 3827657. The next prime is 3827671. The reversal of 3827661 is 1667283.

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

It is not a de Polignac number, because 3827661 - 2² = 3827657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3827611) 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, 3835 + ... + 4728.

It is an arithmetic number, because the mean of its divisors is an integer number (642300).

Almost surely, 2^3827661 is an apocalyptic number.

It is an amenable number.

3827661 is a deficient number, since it is larger than the sum of its proper divisors (1310739).

3827661 is a wasteful number, since it uses less digits than its factorization.

3827661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8715.

The product of its digits is 12096, while the sum is 33.

The square root of 3827661 is about 1956.4409012286. The cubic root of 3827661 is about 156.4267980629.

The spelling of 3827661 in words is "three million, eight hundred twenty-seven thousand, six hundred sixty-one".