3500825 has 12 divisors (see below), whose sum is σ = 4366908. Its totient is φ = 2784000.

The previous prime is 3500803. The next prime is 3500831. The reversal of 3500825 is 5280053.

It can be written as a sum of positive squares in 6 ways, for example, as 44944 + 3455881 = 212^2 + 1859^2 .

It is not a de Polignac number, because 3500825 - 2¹² = 3496729 is a prime.

It is a Duffinian number.

3500825 is a modest number, since divided by 825 gives 350 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 3500825.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5525 + ... + 6125.

It is an arithmetic number, because the mean of its divisors is an integer number (363909).

Almost surely, 2^3500825 is an apocalyptic number.

It is an amenable number.

3500825 is a deficient number, since it is larger than the sum of its proper divisors (866083).

3500825 is a wasteful number, since it uses less digits than its factorization.

3500825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 3500825 is about 1871.0491709199. The cubic root of 3500825 is about 151.8413771133.

Adding to 3500825 its reverse (5280053), we get a palindrome (8780878).

The spelling of 3500825 in words is "three million, five hundred thousand, eight hundred twenty-five".