3785289 has 4 divisors (see below), whose sum is σ = 5047056. Its totient is φ = 2523524.

The previous prime is 3785281. The next prime is 3785291. The reversal of 3785289 is 9825873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3785289 - 2³ = 3785281 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3785289.

It is not an unprimeable number, because it can be changed into a prime (3785281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630879 + ... + 630884.

It is an arithmetic number, because the mean of its divisors is an integer number (1261764).

Almost surely, 2^3785289 is an apocalyptic number.

It is an amenable number.

3785289 is a deficient number, since it is larger than the sum of its proper divisors (1261767).

3785289 is a wasteful number, since it uses less digits than its factorization.

3785289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261766.

The product of its digits is 120960, while the sum is 42.

The square root of 3785289 is about 1945.5819180903. The cubic root of 3785289 is about 155.8474429032.

The spelling of 3785289 in words is "three million, seven hundred eighty-five thousand, two hundred eighty-nine".