9973129 has 4 divisors (see below), whose sum is σ = 10317060. Its totient is φ = 9629200.

The previous prime is 9973123. The next prime is 9973133. The reversal of 9973129 is 9213799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9213799 = 7 ⋅1316257.

It can be written as a sum of positive squares in 2 ways, for example, as 4613904 + 5359225 = 2148^2 + 2315^2 .

It is a cyclic number.

It is not a de Polignac number, because 9973129 - 2³ = 9973121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9973091 and 9973100.

It is not an unprimeable number, because it can be changed into a prime (9973121) 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, 171922 + ... + 171979.

It is an arithmetic number, because the mean of its divisors is an integer number (2579265).

Almost surely, 2^9973129 is an apocalyptic number.

It is an amenable number.

9973129 is a deficient number, since it is larger than the sum of its proper divisors (343931).

9973129 is a wasteful number, since it uses less digits than its factorization.

9973129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343930.

The product of its digits is 30618, while the sum is 40.

The square root of 9973129 is about 3158.0261240211. The cubic root of 9973129 is about 215.2503231838.

The spelling of 9973129 in words is "nine million, nine hundred seventy-three thousand, one hundred twenty-nine".