3543989 has 4 divisors (see below), whose sum is σ = 3579180. Its totient is φ = 3508800.

The previous prime is 3543983. The next prime is 3543997. The reversal of 3543989 is 9893453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9893453 = 47 ⋅210499.

It can be written as a sum of positive squares in 2 ways, for example, as 3204100 + 339889 = 1790^2 + 583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3543989 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 (3543983) 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, 17444 + ... + 17645.

It is an arithmetic number, because the mean of its divisors is an integer number (894795).

Almost surely, 2^3543989 is an apocalyptic number.

It is an amenable number.

3543989 is a deficient number, since it is larger than the sum of its proper divisors (35191).

3543989 is a wasteful number, since it uses less digits than its factorization.

3543989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35190.

The product of its digits is 116640, while the sum is 41.

The square root of 3543989 is about 1882.5485385509. The cubic root of 3543989 is about 152.4628808699.

The spelling of 3543989 in words is "three million, five hundred forty-three thousand, nine hundred eighty-nine".