3985167800 has 48 divisors (see below), whose sum is σ = 9564417600. Its totient is φ = 1542643200.

The previous prime is 3985167793. The next prime is 3985167817. The reversal of 3985167800 is 87615893.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 315185 + ... + 327584.

It is an arithmetic number, because the mean of its divisors is an integer number (199258700).

Almost surely, 2^3985167800 is an apocalyptic number.

It is an amenable number.

3985167800 is an abundant number, since it is smaller than the sum of its proper divisors (5579249800).

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

3985167800 is a wasteful number, since it uses less digits than its factorization.

3985167800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642816 (or 642807 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 3985167800 is about 63128.1854641807. The cubic root of 3985167800 is about 1585.4365676714.

The spelling of 3985167800 in words is "three billion, nine hundred eighty-five million, one hundred sixty-seven thousand, eight hundred".