3969543 has 8 divisors (see below), whose sum is σ = 5318656. Its totient is φ = 2633400.

The previous prime is 3969529. The next prime is 3969557. The reversal of 3969543 is 3459693.

It is an interprime number because it is at equal distance from previous prime (3969529) and next prime (3969557).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3969543 - 2⁴ = 3969527 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 (3969503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2503 + ... + 3768.

It is an arithmetic number, because the mean of its divisors is an integer number (664832).

Almost surely, 2^3969543 is an apocalyptic number.

3969543 is a deficient number, since it is larger than the sum of its proper divisors (1349113).

3969543 is a wasteful number, since it uses less digits than its factorization.

3969543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485.

The product of its digits is 87480, while the sum is 39.

The square root of 3969543 is about 1992.3712003540. The cubic root of 3969543 is about 158.3361826511.

The spelling of 3969543 in words is "three million, nine hundred sixty-nine thousand, five hundred forty-three".