3145784 has 16 divisors (see below), whose sum is σ = 5987400. Its totient is φ = 1549152.

The previous prime is 3145781. The next prime is 3145801. The reversal of 3145784 is 4875413.

It is a d-powerful number, because it can be written as 3³ + 1 + 4² + 5 + 7 + 8⁷ + 4¹⁰ .

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 3145784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2399 + ... + 3470.

Almost surely, 2^3145784 is an apocalyptic number.

It is an amenable number.

3145784 is a deficient number, since it is larger than the sum of its proper divisors (2841616).

3145784 is a wasteful number, since it uses less digits than its factorization.

3145784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942 (or 5938 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 3145784 is about 1773.6358138017. The cubic root of 3145784 is about 146.5242925078.

The spelling of 3145784 in words is "three million, one hundred forty-five thousand, seven hundred eighty-four".