3520604 has 6 divisors (see below), whose sum is σ = 6161064. Its totient is φ = 1760300.

The previous prime is 3520603. The next prime is 3520607. The reversal of 3520604 is 4060253.

It is an Ulam number.

It is a nialpdrome in base 9.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 440072 + ... + 440079.

It is an arithmetic number, because the mean of its divisors is an integer number (1026844).

Almost surely, 2^3520604 is an apocalyptic number.

It is an amenable number.

3520604 is a deficient number, since it is larger than the sum of its proper divisors (2640460).

3520604 is a wasteful number, since it uses less digits than its factorization.

3520604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880155 (or 880153 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3520604 is about 1876.3272635657. The cubic root of 3520604 is about 152.1267986271.

Adding to 3520604 its reverse (4060253), we get a palindrome (7580857).

The spelling of 3520604 in words is "three million, five hundred twenty thousand, six hundred four".