3785391 has 6 divisors (see below), whose sum is σ = 5467800. Its totient is φ = 2523588.

The previous prime is 3785371. The next prime is 3785393. The reversal of 3785391 is 1935873.

It is not a de Polignac number, because 3785391 - 2¹⁰ = 3784367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3785393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210291 + ... + 210308.

It is an arithmetic number, because the mean of its divisors is an integer number (911300).

Almost surely, 2^3785391 is an apocalyptic number.

3785391 is a deficient number, since it is larger than the sum of its proper divisors (1682409).

3785391 is a wasteful number, since it uses less digits than its factorization.

3785391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420605 (or 420602 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 3785391 is about 1945.6081311508. The cubic root of 3785391 is about 155.8488427343.

The spelling of 3785391 in words is "three million, seven hundred eighty-five thousand, three hundred ninety-one".