3500500 has 24 divisors (see below), whose sum is σ = 7646184. Its totient is φ = 1400000.

The previous prime is 3500477. The next prime is 3500509. The reversal of 3500500 is 50053.

It can be written as a sum of positive squares in 4 ways, for example, as 217156 + 3283344 = 466^2 + 1812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3500509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3001 + ... + 4000.

It is an arithmetic number, because the mean of its divisors is an integer number (318591).

Almost surely, 2^3500500 is an apocalyptic number.

It is an amenable number.

3500500 is an abundant number, since it is smaller than the sum of its proper divisors (4145684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3500500 is a wasteful number, since it uses less digits than its factorization.

3500500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7020 (or 7008 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 13.

The square root of 3500500 is about 1870.9623192357. The cubic root of 3500500 is about 151.8366782233.

Adding to 3500500 its reverse (50053), we get a palindrome (3550553).

The spelling of 3500500 in words is "three million, five hundred thousand, five hundred".