3521826 has 96 divisors (see below), whose sum is σ = 10013760. Its totient is φ = 914760.

The previous prime is 3521803. The next prime is 3521831. The reversal of 3521826 is 6281253.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 3521826.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 320161 + ... + 320171.

It is an arithmetic number, because the mean of its divisors is an integer number (104310).

Almost surely, 2^3521826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3521826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5006880).

3521826 is an abundant number, since it is smaller than the sum of its proper divisors (6491934).

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

3521826 is a wasteful number, since it uses less digits than its factorization.

3521826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 23 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 3521826 is about 1876.6528714709. The cubic root of 3521826 is about 152.1443976379.

The spelling of 3521826 in words is "three million, five hundred twenty-one thousand, eight hundred twenty-six".