3547989 has 16 divisors (see below), whose sum is σ = 5285440. Its totient is φ = 2352240.

The previous prime is 3547963. The next prime is 3547991. The reversal of 3547989 is 9897453.

3547989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3547989 - 2¹² = 3543893 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 5⁹ + 4 + 7 + 9 + 8³ + 9 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3547909) 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 15 ways as a sum of consecutive naturals, for example, 8739 + ... + 9135.

It is an arithmetic number, because the mean of its divisors is an integer number (330340).

Almost surely, 2^3547989 is an apocalyptic number.

It is an amenable number.

3547989 is a deficient number, since it is larger than the sum of its proper divisors (1737451).

3547989 is a wasteful number, since it uses less digits than its factorization.

3547989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737 (or 731 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3547989 is about 1883.6106285536. The cubic root of 3547989 is about 152.5202194815.

The spelling of 3547989 in words is "three million, five hundred forty-seven thousand, nine hundred eighty-nine".