3521416 has 8 divisors (see below), whose sum is σ = 6602670. Its totient is φ = 1760704.

The previous prime is 3521389. The next prime is 3521417. The reversal of 3521416 is 6141253.

It can be written as a sum of positive squares in only one way, i.e., 3437316 + 84100 = 1854^2 + 290^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3521417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220081 + ... + 220096.

Almost surely, 2^3521416 is an apocalyptic number.

It is an amenable number.

3521416 is a deficient number, since it is larger than the sum of its proper divisors (3081254).

3521416 is a wasteful number, since it uses less digits than its factorization.

3521416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440183 (or 440179 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 3521416 is about 1876.5436312540. The cubic root of 3521416 is about 152.1384933500.

Adding to 3521416 its reverse (6141253), we get a palindrome (9662669).

The spelling of 3521416 in words is "three million, five hundred twenty-one thousand, four hundred sixteen".