3869725 has 6 divisors (see below), whose sum is σ = 4798490. Its totient is φ = 3095760.

The previous prime is 3869687. The next prime is 3869729. The reversal of 3869725 is 5279683.

3869725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 622521 + 3247204 = 789^2 + 1802^2 .

It is not a de Polignac number, because 3869725 - 2⁹ = 3869213 is a prime.

3869725 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869729) 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 5 ways as a sum of consecutive naturals, for example, 77370 + ... + 77419.

Almost surely, 2^3869725 is an apocalyptic number.

It is an amenable number.

3869725 is a deficient number, since it is larger than the sum of its proper divisors (928765).

3869725 is a wasteful number, since it uses less digits than its factorization.

3869725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154799 (or 154794 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 3869725 is about 1967.1616608708. The cubic root of 3869725 is about 156.9977280697.

The spelling of 3869725 in words is "three million, eight hundred sixty-nine thousand, seven hundred twenty-five".