3984901155 has 24 divisors (see below), whose sum is σ = 6927094512. Its totient is φ = 2119147584.

The previous prime is 3984901139. The next prime is 3984901159. The reversal of 3984901155 is 5511094893.

3984901155 is a `hidden beast` number, since 3 + 9 + 8 + 490 + 1 + 155 = 666.

3984901155 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3984901155 - 2⁴ = 3984901139 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3984901155.

It is not an unprimeable number, because it can be changed into a prime (3984901159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111984 + ... + 143213.

It is an arithmetic number, because the mean of its divisors is an integer number (288628938).

Almost surely, 2^3984901155 is an apocalyptic number.

3984901155 is a deficient number, since it is larger than the sum of its proper divisors (2942193357).

3984901155 is a wasteful number, since it uses less digits than its factorization.

3984901155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255555 (or 255552 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 3984901155 is about 63126.0734958226. The cubic root of 3984901155 is about 1585.4012067043.

The spelling of 3984901155 in words is "three billion, nine hundred eighty-four million, nine hundred one thousand, one hundred fifty-five".