3642523 has 4 divisors (see below), whose sum is σ = 3647088. Its totient is φ = 3637960.

The previous prime is 3642497. The next prime is 3642559. The reversal of 3642523 is 3252463.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3642523 - 2⁵ = 3642491 is a prime.

It is a d-powerful number, because it can be written as 3⁹ + 6⁵ + 4⁸ + 2⁵ + 5⁹ + 2¹¹ + 3¹³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3642323) by changing a digit.

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, 736 + ... + 2797.

It is an arithmetic number, because the mean of its divisors is an integer number (911772).

Almost surely, 2^3642523 is an apocalyptic number.

3642523 is a deficient number, since it is larger than the sum of its proper divisors (4565).

3642523 is a wasteful number, since it uses less digits than its factorization.

3642523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564.

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

The square root of 3642523 is about 1908.5394939587. The cubic root of 3642523 is about 153.8629663101.

Adding to 3642523 its reverse (3252463), we get a palindrome (6894986).

The spelling of 3642523 in words is "three million, six hundred forty-two thousand, five hundred twenty-three".