3864725 has 6 divisors (see below), whose sum is σ = 4792290. Its totient is φ = 3091760.

The previous prime is 3864719. The next prime is 3864767. The reversal of 3864725 is 5274683.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 334084 + 3530641 = 578^2 + 1879^2 .

It is not a de Polignac number, because 3864725 - 2⁴ = 3864709 is a prime.

It is a Curzon number.

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 5 ways as a sum of consecutive naturals, for example, 77270 + ... + 77319.

It is an arithmetic number, because the mean of its divisors is an integer number (798715).

Almost surely, 2^3864725 is an apocalyptic number.

It is an amenable number.

3864725 is a deficient number, since it is larger than the sum of its proper divisors (927565).

3864725 is a wasteful number, since it uses less digits than its factorization.

3864725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154599 (or 154594 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 3864725 is about 1965.8903835158. The cubic root of 3864725 is about 156.9300809739.

The spelling of 3864725 in words is "three million, eight hundred sixty-four thousand, seven hundred twenty-five".