3886785 has 48 divisors (see below), whose sum is σ = 8002176. Its totient is φ = 1772928.

The previous prime is 3886777. The next prime is 3886787. The reversal of 3886785 is 5876883.

It is not a de Polignac number, because 3886785 - 2³ = 3886777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3886785.

It is not an unprimeable number, because it can be changed into a prime (3886787) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8277 + ... + 8733.

It is an arithmetic number, because the mean of its divisors is an integer number (166712).

Almost surely, 2^3886785 is an apocalyptic number.

3886785 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3886785 is an abundant number, since it is smaller than the sum of its proper divisors (4115391).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3886785 is an equidigital number, since it uses as much as digits as its factorization.

3886785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 472 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 3886785 is about 1971.4930890064. The cubic root of 3886785 is about 157.2281023123.

The spelling of 3886785 in words is "three million, eight hundred eighty-six thousand, seven hundred eighty-five".