3521006 has 16 divisors (see below), whose sum is σ = 5786640. Its totient is φ = 1599360.

The previous prime is 3520999. The next prime is 3521029. The reversal of 3521006 is 6001253.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800 + ... + 2771.

It is an arithmetic number, because the mean of its divisors is an integer number (361665).

Almost surely, 2^3521006 is an apocalyptic number.

3521006 is a deficient number, since it is larger than the sum of its proper divisors (2265634).

3521006 is a wasteful number, since it uses less digits than its factorization.

3521006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 3521006 is about 1876.4343846775. The cubic root of 3521006 is about 152.1325886038.

Adding to 3521006 its reverse (6001253), we get a palindrome (9522259).

The spelling of 3521006 in words is "three million, five hundred twenty-one thousand, six".