9799900 has 72 divisors (see below), whose sum is σ = 23748480. Its totient is φ = 3480000.

The previous prime is 9799897. The next prime is 9799903. The reversal of 9799900 is 99979.

It is an interprime number because it is at equal distance from previous prime (9799897) and next prime (9799903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9799903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64825 + ... + 64975.

It is an arithmetic number, because the mean of its divisors is an integer number (329840).

Almost surely, 2^9799900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9799900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11874240).

9799900 is an abundant number, since it is smaller than the sum of its proper divisors (13948580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9799900 is a wasteful number, since it uses less digits than its factorization.

9799900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 43.

The square root of 9799900 is about 3130.4791965448. The cubic root of 9799900 is about 213.9967682279.

The spelling of 9799900 in words is "nine million, seven hundred ninety-nine thousand, nine hundred".