8445872403 has 16 divisors (see below), whose sum is σ = 12522252960. Its totient is φ = 5626149408.

The previous prime is 8445872387. The next prime is 8445872423. The reversal of 8445872403 is 3042785448.

It is a happy number.

8445872403 is a `hidden beast` number, since 8 + 44 + 587 + 24 + 0 + 3 = 666.

8445872403 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8445872403 - 2⁴ = 8445872387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8445872423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88000 + ... + 156957.

It is an arithmetic number, because the mean of its divisors is an integer number (782640810).

Almost surely, 2^8445872403 is an apocalyptic number.

8445872403 is a deficient number, since it is larger than the sum of its proper divisors (4076380557).

8445872403 is a wasteful number, since it uses less digits than its factorization.

8445872403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246243 (or 246237 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The square root of 8445872403 is about 91901.4276439708. The cubic root of 8445872403 is about 2036.4863586798.

The spelling of 8445872403 in words is "eight billion, four hundred forty-five million, eight hundred seventy-two thousand, four hundred three".