3500003 has 4 divisors (see below), whose sum is σ = 3769248. Its totient is φ = 3230760.

The previous prime is 3499999. The next prime is 3500017. The reversal of 3500003 is 3000053.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3000053 = 7 ⋅428579.

It is not a de Polignac number, because 3500003 - 2² = 3499999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3500023) 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, 134603 + ... + 134628.

It is an arithmetic number, because the mean of its divisors is an integer number (942312).

Almost surely, 2^3500003 is an apocalyptic number.

3500003 is a deficient number, since it is larger than the sum of its proper divisors (269245).

3500003 is a wasteful number, since it uses less digits than its factorization.

3500003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269244.

The product of its (nonzero) digits is 45, while the sum is 11.

The square root of 3500003 is about 1870.8294951705. The cubic root of 3500003 is about 151.8294919736.

Adding to 3500003 its reverse (3000053), we get a palindrome (6500056).

The spelling of 3500003 in words is "three million, five hundred thousand, three".