8897999903 has 54 divisors (see below), whose sum is σ = 10801583784. Its totient is φ = 7311203328.

The previous prime is 8897999881. The next prime is 8897999921. The reversal of 8897999903 is 3099997988.

It is not a de Polignac number, because 8897999903 - 2⁸ = 8897999647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8897992903) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 99977483 + ... + 99977571.

Almost surely, 2^8897999903 is an apocalyptic number.

8897999903 is a deficient number, since it is larger than the sum of its proper divisors (1903583881).

8897999903 is a wasteful number, since it uses less digits than its factorization.

8897999903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 79361856, while the sum is 71.

The square root of 8897999903 is about 94329.2102320379. The cubic root of 8897999903 is about 2072.1958466080.

The spelling of 8897999903 in words is "eight billion, eight hundred ninety-seven million, nine hundred ninety-nine thousand, nine hundred three".