3948669 has 30 divisors (see below), whose sum is σ = 6254490. Its totient is φ = 2479680.

The previous prime is 3948667. The next prime is 3948673. The reversal of 3948669 is 9668493.

3948669 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 3 ways, for example, as 99225 + 3849444 = 315^2 + 1962^2 .

It is not a de Polignac number, because 3948669 - 2¹ = 3948667 is a prime.

It is a super-2 number, since 2×3948669² = 31183973743122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948667) by changing a digit.

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 29 ways as a sum of consecutive naturals, for example, 96289 + ... + 96329.

It is an arithmetic number, because the mean of its divisors is an integer number (208483).

Almost surely, 2^3948669 is an apocalyptic number.

It is an amenable number.

3948669 is a deficient number, since it is larger than the sum of its proper divisors (2305821).

3948669 is an equidigital number, since it uses as much as digits as its factorization.

3948669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 73 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 3948669 is about 1987.1258138326. The cubic root of 3948669 is about 158.0581557001.

The spelling of 3948669 in words is "three million, nine hundred forty-eight thousand, six hundred sixty-nine".