9900829 has 4 divisors (see below), whose sum is σ = 9907776. Its totient is φ = 9893884.

The previous prime is 9900827. The next prime is 9900857. The reversal of 9900829 is 9280099.

9900829 is digitally balanced in base 2, 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9900829 - 2¹ = 9900827 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 (9900827) 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, 469 + ... + 4474.

It is an arithmetic number, because the mean of its divisors is an integer number (2476944).

Almost surely, 2^9900829 is an apocalyptic number.

It is an amenable number.

9900829 is a deficient number, since it is larger than the sum of its proper divisors (6947).

9900829 is a wasteful number, since it uses less digits than its factorization.

9900829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6946.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 9900829 is about 3146.5582785005. The cubic root of 9900829 is about 214.7289101790.

The spelling of 9900829 in words is "nine million, nine hundred thousand, eight hundred twenty-nine".