3969359 has 4 divisors (see below), whose sum is σ = 3973704. Its totient is φ = 3965016.

The previous prime is 3969349. The next prime is 3969367. The reversal of 3969359 is 9539693.

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 3969359 - 2²⁰ = 2920783 is a prime.

It is a Duffinian 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212 + ... + 2825.

It is an arithmetic number, because the mean of its divisors is an integer number (993426).

Almost surely, 2^3969359 is an apocalyptic number.

3969359 is a deficient number, since it is larger than the sum of its proper divisors (4345).

3969359 is a wasteful number, since it uses less digits than its factorization.

3969359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344.

The product of its digits is 196830, while the sum is 44.

The square root of 3969359 is about 1992.3250236846. The cubic root of 3969359 is about 158.3337361639. Note that the first 3 decimals are identical.

The spelling of 3969359 in words is "three million, nine hundred sixty-nine thousand, three hundred fifty-nine".