9900961039 has 4 divisors (see below), whose sum is σ = 9930873640. Its totient is φ = 9871048440.

The previous prime is 9900961033. The next prime is 9900961061. The reversal of 9900961039 is 9301690099.

9900961039 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9900961039 - 2⁷ = 9900960911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9900961039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9900961033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14955804 + ... + 14956465.

It is an arithmetic number, because the mean of its divisors is an integer number (2482718410).

Almost surely, 2^9900961039 is an apocalyptic number.

9900961039 is a deficient number, since it is larger than the sum of its proper divisors (29912601).

9900961039 is a wasteful number, since it uses less digits than its factorization.

9900961039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29912600.

The product of its (nonzero) digits is 118098, while the sum is 46.

The square root of 9900961039 is about 99503.5729961492. The cubic root of 9900961039 is about 2147.2986472750.

The spelling of 9900961039 in words is "nine billion, nine hundred million, nine hundred sixty-one thousand, thirty-nine".