3978153 has 32 divisors (see below), whose sum is σ = 6376320. Its totient is φ = 2472768.

The previous prime is 3978113. The next prime is 3978167. The reversal of 3978153 is 3518793.

It is not a de Polignac number, because 3978153 - 2¹² = 3974057 is a prime.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (3978113) 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 31 ways as a sum of consecutive naturals, for example, 37126 + ... + 37232.

It is an arithmetic number, because the mean of its divisors is an integer number (199260).

Almost surely, 2^3978153 is an apocalyptic number.

It is an amenable number.

3978153 is a deficient number, since it is larger than the sum of its proper divisors (2398167).

3978153 is an equidigital number, since it uses as much as digits as its factorization.

3978153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 127 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 3978153 is about 1994.5307718860. The cubic root of 3978153 is about 158.4505778568.

The spelling of 3978153 in words is "three million, nine hundred seventy-eight thousand, one hundred fifty-three".