3520601 has 6 divisors (see below), whose sum is σ = 4095450. Its totient is φ = 3017616.

The previous prime is 3520597. The next prime is 3520603. The reversal of 3520601 is 1060253.

It can be written as a sum of positive squares in only one way, i.e., 3519376 + 1225 = 1876^2 + 35^2 .

It is not a de Polignac number, because 3520601 - 2² = 3520597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3520601.

It is not an unprimeable number, because it can be changed into a prime (3520603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35876 + ... + 35973.

It is an arithmetic number, because the mean of its divisors is an integer number (682575).

Almost surely, 2^3520601 is an apocalyptic number.

It is an amenable number.

3520601 is a deficient number, since it is larger than the sum of its proper divisors (574849).

3520601 is an equidigital number, since it uses as much as digits as its factorization.

3520601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71863 (or 71856 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 3520601 is about 1876.3264641314. The cubic root of 3520601 is about 152.1267554167.

Adding to 3520601 its reverse (1060253), we get a palindrome (4580854).

The spelling of 3520601 in words is "three million, five hundred twenty thousand, six hundred one".