8503939920 has 160 divisors (see below), whose sum is σ = 31900601088. Its totient is φ = 1829412864.

The previous prime is 8503939919. The next prime is 8503939921. The reversal of 8503939920 is 299393058.

It is an interprime number because it is at equal distance from previous prime (8503939919) and next prime (8503939921).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 8503939920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8503939921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120319 + ... + 177438.

Almost surely, 2^8503939920 is an apocalyptic number.

8503939920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8503939920 is an abundant number, since it is smaller than the sum of its proper divisors (23396661168).

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

8503939920 is a wasteful number, since it uses less digits than its factorization.

8503939920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297797 (or 297791 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The square root of 8503939920 is about 92216.8093137038. The cubic root of 8503939920 is about 2041.1428237141.

The spelling of 8503939920 in words is "eight billion, five hundred three million, nine hundred thirty-nine thousand, nine hundred twenty".