3897785 has 8 divisors (see below), whose sum is σ = 4828416. Its totient is φ = 3017520.

The previous prime is 3897749. The next prime is 3897797. The reversal of 3897785 is 5877983.

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

It is not a de Polignac number, because 3897785 - 2⁶ = 3897721 is a prime.

It is a Duffinian 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, 12419 + ... + 12728.

It is an arithmetic number, because the mean of its divisors is an integer number (603552).

Almost surely, 2^3897785 is an apocalyptic number.

It is an amenable number.

3897785 is a deficient number, since it is larger than the sum of its proper divisors (930631).

3897785 is a wasteful number, since it uses less digits than its factorization.

3897785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25183.

The product of its digits is 423360, while the sum is 47.

The square root of 3897785 is about 1974.2808817390. The cubic root of 3897785 is about 157.3762864905.

The spelling of 3897785 in words is "three million, eight hundred ninety-seven thousand, seven hundred eighty-five".