3725618 has 16 divisors (see below), whose sum is σ = 6373080. Its totient is φ = 1618176.

The previous prime is 3725597. The next prime is 3725651. The reversal of 3725618 is 8165273.

It is a happy number.

3725618 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 4 ways, for example, as 2455489 + 1270129 = 1567^2 + 1127^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3773 + ... + 4656.

Almost surely, 2^3725618 is an apocalyptic number.

3725618 is a deficient number, since it is larger than the sum of its proper divisors (2647462).

3725618 is a wasteful number, since it uses less digits than its factorization.

3725618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8461.

The product of its digits is 10080, while the sum is 32.

The square root of 3725618 is about 1930.1860013999. The cubic root of 3725618 is about 155.0241793705.

The spelling of 3725618 in words is "three million, seven hundred twenty-five thousand, six hundred eighteen".