3500641 has 3 divisors (see below), whose sum is σ = 3502513. Its totient is φ = 3498770.

The previous prime is 3500593. The next prime is 3500671. The reversal of 3500641 is 1460053.

The square root of 3500641 is 1871.

It is a perfect power (a square), and thus also a powerful number.

3500641 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, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 3500641 - 2²¹ = 1403489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3500671) 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 in 2 ways as a sum of consecutive naturals, for example, 936 + ... + 2806.

Almost surely, 2^3500641 is an apocalyptic number.

3500641 is the 1871-st square number.

3500641 is the 936-th centered octagonal number.

It is an amenable number.

3500641 is a deficient number, since it is larger than the sum of its proper divisors (1872).

3500641 is an frugal number, since it uses more digits than its factorization.

3500641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742 (or 1871 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The cubic root of 3500641 is about 151.8387168543.

Adding to 3500641 its reverse (1460053), we get a palindrome (4960694).

The spelling of 3500641 in words is "three million, five hundred thousand, six hundred forty-one".