3969380 has 12 divisors (see below), whose sum is σ = 8335740. Its totient is φ = 1587744.

The previous prime is 3969377. The next prime is 3969389. The reversal of 3969380 is 839693.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1784896 + 2184484 = 1336^2 + 1478^2 .

It is not an unprimeable number, because it can be changed into a prime (3969389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99215 + ... + 99254.

It is an arithmetic number, because the mean of its divisors is an integer number (694645).

Almost surely, 2^3969380 is an apocalyptic number.

It is an amenable number.

3969380 is an abundant number, since it is smaller than the sum of its proper divisors (4366360).

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

3969380 is a wasteful number, since it uses less digits than its factorization.

3969380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198478 (or 198476 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 3969380 is about 1992.3302939021. The cubic root of 3969380 is about 158.3340153864.

The spelling of 3969380 in words is "three million, nine hundred sixty-nine thousand, three hundred eighty".