3827641 has 4 divisors (see below), whose sum is σ = 3836800. Its totient is φ = 3818484.

The previous prime is 3827639. The next prime is 3827647. The reversal of 3827641 is 1467283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3827641 - 2¹ = 3827639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3827647) 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, 3921 + ... + 4798.

It is an arithmetic number, because the mean of its divisors is an integer number (959200).

Almost surely, 2^3827641 is an apocalyptic number.

It is an amenable number.

3827641 is a deficient number, since it is larger than the sum of its proper divisors (9159).

3827641 is an equidigital number, since it uses as much as digits as its factorization.

3827641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9158.

The product of its digits is 8064, while the sum is 31.

The square root of 3827641 is about 1956.4357898996. The cubic root of 3827641 is about 156.4265256126.

The spelling of 3827641 in words is "three million, eight hundred twenty-seven thousand, six hundred forty-one".