3925445 has 8 divisors (see below), whose sum is σ = 4799736. Its totient is φ = 3080896.

The previous prime is 3925421. The next prime is 3925459. The reversal of 3925445 is 5445293.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 417316 + 3508129 = 646^2 + 1873^2 .

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 3925445 - 2²⁰ = 2876869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7142 + ... + 7671.

It is an arithmetic number, because the mean of its divisors is an integer number (599967).

Almost surely, 2^3925445 is an apocalyptic number.

It is an amenable number.

3925445 is a deficient number, since it is larger than the sum of its proper divisors (874291).

3925445 is a wasteful number, since it uses less digits than its factorization.

3925445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14871.

The product of its digits is 21600, while the sum is 32.

The square root of 3925445 is about 1981.2735803013. The cubic root of 3925445 is about 157.7476744826.

The spelling of 3925445 in words is "three million, nine hundred twenty-five thousand, four hundred forty-five".