3978975333 has 24 divisors (see below), whose sum is σ = 5508242688. Its totient is φ = 2554914600.

The previous prime is 3978975331. The next prime is 3978975337. The reversal of 3978975333 is 3335798793.

3978975333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3978975333 - 2¹ = 3978975331 is a prime.

It is a super-3 number, since 3×3978975333³ (a number of 30 digits) contains 333 as substring.

Its product of digits (12859560) is a multiple of the sum of its prime divisors (245).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978975331) 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, 18857598 + ... + 18857808.

It is an arithmetic number, because the mean of its divisors is an integer number (229510112).

Almost surely, 2^3978975333 is an apocalyptic number.

It is an amenable number.

3978975333 is a deficient number, since it is larger than the sum of its proper divisors (1529267355).

3978975333 is an frugal number, since it uses more digits than its factorization.

3978975333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 245 counting only the distinct ones).

The product of its digits is 12859560, while the sum is 57.

The square root of 3978975333 is about 63079.1196276549. The cubic root of 3978975333 is about 1584.6149499699.

The spelling of 3978975333 in words is "three billion, nine hundred seventy-eight million, nine hundred seventy-five thousand, three hundred thirty-three".