3862645 has 8 divisors (see below), whose sum is σ = 4651704. Its totient is φ = 3079104.

The previous prime is 3862609. The next prime is 3862673. The reversal of 3862645 is 5462683.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 380689 + 3481956 = 617^2 + 1866^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3862645 - 2¹³ = 3854453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3862645.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 367 + ... + 2803.

It is an arithmetic number, because the mean of its divisors is an integer number (581463).

Almost surely, 2^3862645 is an apocalyptic number.

It is an amenable number.

3862645 is a deficient number, since it is larger than the sum of its proper divisors (789059).

3862645 is a wasteful number, since it uses less digits than its factorization.

3862645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759.

The product of its digits is 34560, while the sum is 34.

The square root of 3862645 is about 1965.3612899414. The cubic root of 3862645 is about 156.9019225974.

The spelling of 3862645 in words is "three million, eight hundred sixty-two thousand, six hundred forty-five".