3521516 has 12 divisors (see below), whose sum is σ = 6525288. Its totient is φ = 1657152.

The previous prime is 3521513. The next prime is 3521519. The reversal of 3521516 is 6151253.

It is an interprime number because it is at equal distance from previous prime (3521513) and next prime (3521519).

It is a junction number, because it is equal to n+sod(n) for n = 3521491 and 3521500.

It is not an unprimeable number, because it can be changed into a prime (3521513) 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, 25826 + ... + 25961.

It is an arithmetic number, because the mean of its divisors is an integer number (543774).

Almost surely, 2^3521516 is an apocalyptic number.

It is an amenable number.

3521516 is a deficient number, since it is larger than the sum of its proper divisors (3003772).

3521516 is a wasteful number, since it uses less digits than its factorization.

3521516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51808 (or 51806 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 3521516 is about 1876.5702757957. The cubic root of 3521516 is about 152.1399334625.

Adding to 3521516 its reverse (6151253), we get a palindrome (9672769).

The spelling of 3521516 in words is "three million, five hundred twenty-one thousand, five hundred sixteen".