3978948 has 12 divisors (see below), whose sum is σ = 9284240. Its totient is φ = 1326312.

The previous prime is 3978917. The next prime is 3978967. The reversal of 3978948 is 8498793.

3978948 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 3978897 and 3978906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165778 + ... + 165801.

Almost surely, 2^3978948 is an apocalyptic number.

It is an amenable number.

3978948 is an abundant number, since it is smaller than the sum of its proper divisors (5305292).

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

3978948 is a wasteful number, since it uses less digits than its factorization.

3978948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331586 (or 331584 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 3978948 is about 1994.7300569250. The cubic root of 3978948 is about 158.4611321533.

It can be divided in two parts, 39 and 78948, that added together give a palindrome (78987).

The spelling of 3978948 in words is "three million, nine hundred seventy-eight thousand, nine hundred forty-eight".