3983721154 has 32 divisors (see below), whose sum is σ = 7213510656. Its totient is φ = 1613802960.

The previous prime is 3983721151. The next prime is 3983721169. The reversal of 3983721154 is 4511273893.

3983721154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 3983721154.

It is not an unprimeable number, because it can be changed into a prime (3983721151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88072 + ... + 125395.

It is an arithmetic number, because the mean of its divisors is an integer number (225422208).

Almost surely, 2^3983721154 is an apocalyptic number.

3983721154 is a deficient number, since it is larger than the sum of its proper divisors (3229789502).

3983721154 is a wasteful number, since it uses less digits than its factorization.

3983721154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213550.

The product of its digits is 181440, while the sum is 43.

The square root of 3983721154 is about 63116.7264201812. The cubic root of 3983721154 is about 1585.2447026386.

The spelling of 3983721154 in words is "three billion, nine hundred eighty-three million, seven hundred twenty-one thousand, one hundred fifty-four".