3969319 has 4 divisors (see below), whose sum is σ = 3973896. Its totient is φ = 3964744.

The previous prime is 3969307. The next prime is 3969349. The reversal of 3969319 is 9139693.

3969319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3969319 - 2⁷ = 3969191 is a prime.

It is a super-2 number, since 2×3969319² = 31510986647522, which contains 22 as substring.

It is a Duffinian number.

3969319 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969349) 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 3 ways as a sum of consecutive naturals, for example, 544 + ... + 2869.

It is an arithmetic number, because the mean of its divisors is an integer number (993474).

Almost surely, 2^3969319 is an apocalyptic number.

3969319 is a deficient number, since it is larger than the sum of its proper divisors (4577).

3969319 is a wasteful number, since it uses less digits than its factorization.

3969319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576.

The product of its digits is 39366, while the sum is 40.

The square root of 3969319 is about 1992.3149851366. The cubic root of 3969319 is about 158.3332043089. Note that the first 3 decimals are identical.

The spelling of 3969319 in words is "three million, nine hundred sixty-nine thousand, three hundred nineteen".