3864745 has 4 divisors (see below), whose sum is σ = 4637700. Its totient is φ = 3091792.

The previous prime is 3864719. The next prime is 3864767. The reversal of 3864745 is 5474683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5474683 = 313 ⋅17491.

It can be written as a sum of positive squares in 2 ways, for example, as 1032256 + 2832489 = 1016^2 + 1683^2 .

It is a cyclic number.

It is not a de Polignac number, because 3864745 - 2⁹ = 3864233 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 386470 + ... + 386479.

It is an arithmetic number, because the mean of its divisors is an integer number (1159425).

Almost surely, 2^3864745 is an apocalyptic number.

It is an amenable number.

3864745 is a deficient number, since it is larger than the sum of its proper divisors (772955).

3864745 is an equidigital number, since it uses as much as digits as its factorization.

3864745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772954.

The product of its digits is 80640, while the sum is 37.

The square root of 3864745 is about 1965.8954702629. The cubic root of 3864745 is about 156.9303516785.

The spelling of 3864745 in words is "three million, eight hundred sixty-four thousand, seven hundred forty-five".