3528639 has 12 divisors (see below), whose sum is σ = 5396976. Its totient is φ = 2213952.

The previous prime is 3528631. The next prime is 3528641. The reversal of 3528639 is 9368253.

It is not a de Polignac number, because 3528639 - 2³ = 3528631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3528631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11379 + ... + 11684.

It is an arithmetic number, because the mean of its divisors is an integer number (449748).

Almost surely, 2^3528639 is an apocalyptic number.

3528639 is a deficient number, since it is larger than the sum of its proper divisors (1868337).

3528639 is a wasteful number, since it uses less digits than its factorization.

3528639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23086 (or 23083 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3528639 is about 1878.4671942837. The cubic root of 3528639 is about 152.2424426187.

The spelling of 3528639 in words is "three million, five hundred twenty-eight thousand, six hundred thirty-nine".