3979530 has 80 divisors (see below), whose sum is σ = 11369160. Its totient is φ = 998784.

The previous prime is 3979523. The next prime is 3979543. The reversal of 3979530 is 359793.

3979530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3337929 + 641601 = 1827^2 + 801^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 234082 + ... + 234098.

Almost surely, 2^3979530 is an apocalyptic number.

3979530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3979530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5684580).

3979530 is an abundant number, since it is smaller than the sum of its proper divisors (7389630).

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

3979530 is an equidigital number, since it uses as much as digits as its factorization.

3979530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 36.

The square root of 3979530 is about 1994.8759359920. The cubic root of 3979530 is about 158.4688578036.

The spelling of 3979530 in words is "three million, nine hundred seventy-nine thousand, five hundred thirty".