9979700 has 36 divisors (see below), whose sum is σ = 22602720. Its totient is φ = 3817440.

The previous prime is 9979681. The next prime is 9979727. The reversal of 9979700 is 79799.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131 + ... + 4469.

Almost surely, 2^9979700 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 9979700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11301360).

9979700 is an abundant number, since it is smaller than the sum of its proper divisors (12623020).

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

9979700 is a wasteful number, since it uses less digits than its factorization.

9979700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376 (or 4369 counting only the distinct ones).

The product of its (nonzero) digits is 35721, while the sum is 41.

The square root of 9979700 is about 3159.0663177591. The cubic root of 9979700 is about 215.2975868310.

The spelling of 9979700 in words is "nine million, nine hundred seventy-nine thousand, seven hundred".