3927445 has 8 divisors (see below), whose sum is σ = 4747680. Its totient is φ = 3118800.

The previous prime is 3927437. The next prime is 3927449. The reversal of 3927445 is 5447293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3927445 - 2³ = 3927437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3927445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3927449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2131 + ... + 3520.

It is an arithmetic number, because the mean of its divisors is an integer number (593460).

Almost surely, 2^3927445 is an apocalyptic number.

It is an amenable number.

3927445 is a deficient number, since it is larger than the sum of its proper divisors (820235).

3927445 is a wasteful number, since it uses less digits than its factorization.

3927445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5795.

The product of its digits is 30240, while the sum is 34.

The square root of 3927445 is about 1981.7782418828. The cubic root of 3927445 is about 157.7744605568.

It can be divided in two parts, 3927 and 445, that multiplied together give a triangular number (1747515 = T₁₈₆₉).

The spelling of 3927445 in words is "three million, nine hundred twenty-seven thousand, four hundred forty-five".