3521012 has 24 divisors (see below), whose sum is σ = 6881952. Its totient is φ = 1562400.

The previous prime is 3520999. The next prime is 3521029. The reversal of 3521012 is 2101253.

It is a happy number.

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, 962 + ... + 2822.

It is an arithmetic number, because the mean of its divisors is an integer number (286748).

Almost surely, 2^3521012 is an apocalyptic number.

It is an amenable number.

3521012 is a deficient number, since it is larger than the sum of its proper divisors (3360940).

3521012 is a wasteful number, since it uses less digits than its factorization.

3521012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919 (or 1917 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 3521012 is about 1876.4359834537. The cubic root of 3521012 is about 152.1326750181.

Adding to 3521012 its reverse (2101253), we get a palindrome (5622265).

The spelling of 3521012 in words is "three million, five hundred twenty-one thousand, twelve".