3985670700 has 108 divisors (see below), whose sum is σ = 13628612088. Its totient is φ = 966220800.

The previous prime is 3985670693. The next prime is 3985670701. The reversal of 3985670700 is 70765893.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (3985670701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 191397 + ... + 211196.

Almost surely, 2^3985670700 is an apocalyptic number.

3985670700 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3985670700 is an abundant number, since it is smaller than the sum of its proper divisors (9642941388).

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

3985670700 is a wasteful number, since it uses less digits than its factorization.

3985670700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402624 (or 402614 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 3985670700 is about 63132.1685038618. The cubic root of 3985670700 is about 1585.5032551614.

The spelling of 3985670700 in words is "three billion, nine hundred eighty-five million, six hundred seventy thousand, seven hundred".