3870785 has 16 divisors (see below), whose sum is σ = 4910976. Its totient is φ = 2923008.

The previous prime is 3870773. The next prime is 3870793. The reversal of 3870785 is 5870783.

It is a cyclic number.

It is not a de Polignac number, because 3870785 - 2⁶ = 3870721 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10982 + ... + 11328.

It is an arithmetic number, because the mean of its divisors is an integer number (306936).

Almost surely, 2^3870785 is an apocalyptic number.

It is an amenable number.

3870785 is a deficient number, since it is larger than the sum of its proper divisors (1040191).

3870785 is a wasteful number, since it uses less digits than its factorization.

3870785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 3870785 is about 1967.4310661368. The cubic root of 3870785 is about 157.0120617669.

The spelling of 3870785 in words is "three million, eight hundred seventy thousand, seven hundred eighty-five".