3862661 has 4 divisors (see below), whose sum is σ = 4213824. Its totient is φ = 3511500.

The previous prime is 3862609. The next prime is 3862673. The reversal of 3862661 is 1662683.

3862661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1662683 = 11 ⋅151153.

It is a cyclic number.

It is not a de Polignac number, because 3862661 - 2¹⁴ = 3846277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3862361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175565 + ... + 175586.

It is an arithmetic number, because the mean of its divisors is an integer number (1053456).

Almost surely, 2^3862661 is an apocalyptic number.

It is an amenable number.

3862661 is a deficient number, since it is larger than the sum of its proper divisors (351163).

3862661 is a wasteful number, since it uses less digits than its factorization.

3862661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351162.

The product of its digits is 10368, while the sum is 32.

The square root of 3862661 is about 1965.3653604356. The cubic root of 3862661 is about 156.9021392389.

The spelling of 3862661 in words is "three million, eight hundred sixty-two thousand, six hundred sixty-one".