3785734836 has 72 divisors (see below), whose sum is σ = 10557021384. Its totient is φ = 1136424960.

The previous prime is 3785734831. The next prime is 3785734889. The reversal of 3785734836 is 6384375873.

3785734836 is a `hidden beast` number, since 37 + 8 + 573 + 4 + 8 + 36 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 512750736 + 3272984100 = 22644^2 + 57210^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3785734831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79461 + ... + 117836.

It is an arithmetic number, because the mean of its divisors is an integer number (146625297).

Almost surely, 2^3785734836 is an apocalyptic number.

3785734836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3785734836 is an abundant number, since it is smaller than the sum of its proper divisors (6771286548).

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

3785734836 is a wasteful number, since it uses less digits than its factorization.

3785734836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197361 (or 197356 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 54.

The square root of 3785734836 is about 61528.3254769704. The cubic root of 3785734836 is about 1558.5356129754.

The spelling of 3785734836 in words is "three billion, seven hundred eighty-five million, seven hundred thirty-four thousand, eight hundred thirty-six".