3873836785 has 16 divisors (see below), whose sum is σ = 5721359616. Its totient is φ = 2452010688.

The previous prime is 3873836779. The next prime is 3873836821. The reversal of 3873836785 is 5876383783.

It is a cyclic number.

It is not a de Polignac number, because 3873836785 - 2⁷ = 3873836657 is a prime.

It is a super-2 number, since 2×3873836785² = 30013222873638272450, which contains 22 as substring.

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, 4256509 + ... + 4257418.

It is an arithmetic number, because the mean of its divisors is an integer number (357584976).

Almost surely, 2^3873836785 is an apocalyptic number.

3873836785 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3873836785 is a deficient number, since it is larger than the sum of its proper divisors (1847522831).

3873836785 is a wasteful number, since it uses less digits than its factorization.

3873836785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8513952.

The product of its digits is 20321280, while the sum is 58.

The square root of 3873836785 is about 62240.1541209531. The cubic root of 3873836785 is about 1570.5331448283.

The spelling of 3873836785 in words is "three billion, eight hundred seventy-three million, eight hundred thirty-six thousand, seven hundred eighty-five".