8503940 has 12 divisors (see below), whose sum is σ = 17858316. Its totient is φ = 3401568.

The previous prime is 8503919. The next prime is 8503967. The reversal of 8503940 is 493058.

It can be written as a sum of positive squares in 2 ways, for example, as 3378244 + 5125696 = 1838^2 + 2264^2 .

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212579 + ... + 212618.

It is an arithmetic number, because the mean of its divisors is an integer number (1488193).

Almost surely, 2^8503940 is an apocalyptic number.

It is an amenable number.

8503940 is an abundant number, since it is smaller than the sum of its proper divisors (9354376).

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

8503940 is a wasteful number, since it uses less digits than its factorization.

8503940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425206 (or 425204 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 8503940 is about 2916.1515735640. The cubic root of 8503940 is about 204.1142830115.

Adding to 8503940 its reverse (493058), we get a palindrome (8996998).

The spelling of 8503940 in words is "eight million, five hundred three thousand, nine hundred forty".