3520634 has 8 divisors (see below), whose sum is σ = 5687220. Its totient is φ = 1624896.

The previous prime is 3520613. The next prime is 3520663. The reversal of 3520634 is 4360253.

It can be written as a sum of positive squares in 2 ways, for example, as 3433609 + 87025 = 1853^2 + 295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×3520634³ (a number of 21 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67679 + ... + 67730.

Almost surely, 2^3520634 is an apocalyptic number.

3520634 is a deficient number, since it is larger than the sum of its proper divisors (2166586).

3520634 is a wasteful number, since it uses less digits than its factorization.

3520634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135424.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 3520634 is about 1876.3352578897. The cubic root of 3520634 is about 152.1272307301.

Adding to 3520634 its reverse (4360253), we get a palindrome (7880887).

The spelling of 3520634 in words is "three million, five hundred twenty thousand, six hundred thirty-four".