3523642 has 4 divisors (see below), whose sum is σ = 5285466. Its totient is φ = 1761820.

The previous prime is 3523627. The next prime is 3523649. The reversal of 3523642 is 2463253.

It is a happy number.

3523642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3164841 + 358801 = 1779^2 + 599^2 .

It is not an unprimeable number, because it can be changed into a prime (3523649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 880909 + ... + 880912.

Almost surely, 2^3523642 is an apocalyptic number.

3523642 is a deficient number, since it is larger than the sum of its proper divisors (1761824).

3523642 is a wasteful number, since it uses less digits than its factorization.

3523642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761823.

The product of its digits is 4320, while the sum is 25.

The square root of 3523642 is about 1877.1366492613. The cubic root of 3523642 is about 152.1705438047.

Adding to 3523642 its reverse (2463253), we get a palindrome (5986895).

The spelling of 3523642 in words is "three million, five hundred twenty-three thousand, six hundred forty-two".