8378890503 has 24 divisors (see below), whose sum is σ = 12078437616. Its totient is φ = 5162832000.

The previous prime is 8378890477. The next prime is 8378890523. The reversal of 8378890503 is 3050988738.

It is a happy number.

It is not a de Polignac number, because 8378890503 - 2⁶ = 8378890439 is a prime.

It is a super-2 number, since 2×8378890503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8378890523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49948 + ... + 138753.

It is an arithmetic number, because the mean of its divisors is an integer number (503268234).

Almost surely, 2^8378890503 is an apocalyptic number.

8378890503 is a deficient number, since it is larger than the sum of its proper divisors (3699547113).

8378890503 is a wasteful number, since it uses less digits than its factorization.

8378890503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188783 (or 188764 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 8378890503 is about 91536.2797091951. The cubic root of 8378890503 is about 2031.0884585593.

The spelling of 8378890503 in words is "eight billion, three hundred seventy-eight million, eight hundred ninety thousand, five hundred three".