9997130 has 32 divisors (see below), whose sum is σ = 21143808. Its totient is φ = 3355200.

The previous prime is 9997129. The next prime is 9997133. The reversal of 9997130 is 317999.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (9997133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2066 + ... + 4925.

It is an arithmetic number, because the mean of its divisors is an integer number (660744).

Almost surely, 2^9997130 is an apocalyptic number.

9997130 is an abundant number, since it is smaller than the sum of its proper divisors (11146678).

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

9997130 is a wasteful number, since it uses less digits than its factorization.

9997130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7022.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 9997130 is about 3161.8238407603. The cubic root of 9997130 is about 215.4228562726.

It can be divided in two parts, 99971 and 30, that added together give a palindrome (100001).

The spelling of 9997130 in words is "nine million, nine hundred ninety-seven thousand, one hundred thirty".