3520806 has 8 divisors (see below), whose sum is σ = 7041624. Its totient is φ = 1173600.

The previous prime is 3520801. The next prime is 3520813. The reversal of 3520806 is 6080253.

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

3520806 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520801) 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, 293395 + ... + 293406.

It is an arithmetic number, because the mean of its divisors is an integer number (880203).

Almost surely, 2^3520806 is an apocalyptic number.

3520806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3520806 is a wasteful number, since it uses less digits than its factorization.

3520806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586806.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 3520806 is about 1876.3810913564. The cubic root of 3520806 is about 152.1297080735.

The spelling of 3520806 in words is "three million, five hundred twenty thousand, eight hundred six".