3501943 has 4 divisors (see below), whose sum is σ = 3508648. Its totient is φ = 3495240.

The previous prime is 3501919. The next prime is 3501961. The reversal of 3501943 is 3491053.

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

It is a cyclic number.

It is not a de Polignac number, because 3501943 - 2²¹ = 1404791 is a prime.

It is a Duffinian number.

3501943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3501343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2496 + ... + 3637.

It is an arithmetic number, because the mean of its divisors is an integer number (877162).

Almost surely, 2^3501943 is an apocalyptic number.

3501943 is a deficient number, since it is larger than the sum of its proper divisors (6705).

3501943 is an equidigital number, since it uses as much as digits as its factorization.

3501943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 3501943 is about 1871.3479099302. The cubic root of 3501943 is about 151.8575390743.

Adding to 3501943 its reverse (3491053), we get a palindrome (6992996).

It can be divided in two parts, 3501 and 943, that added together give a palindrome (4444).

The spelling of 3501943 in words is "three million, five hundred one thousand, nine hundred forty-three".