9989003026 has 4 divisors (see below), whose sum is σ = 14983504542. Its totient is φ = 4994501512.

The previous prime is 9989003023. The next prime is 9989003051. The reversal of 9989003026 is 6203009899.

It is a happy number.

It is a Cunningham number, because it is equal to 99945²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9989003025 + 1 = 99945^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (9989003023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2497250755 + ... + 2497250758.

Almost surely, 2^9989003026 is an apocalyptic number.

9989003026 is a deficient number, since it is larger than the sum of its proper divisors (4994501516).

9989003026 is a wasteful number, since it uses less digits than its factorization.

9989003026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4994501515.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 9989003026 is about 99945.0000050028. Note that the first 5 decimals coincide. The cubic root of 9989003026 is about 2153.6446582868.

The spelling of 9989003026 in words is "nine billion, nine hundred eighty-nine million, three thousand, twenty-six".