9976129 has 4 divisors (see below), whose sum is σ = 10208176. Its totient is φ = 9744084.

The previous prime is 9976103. The next prime is 9976151. The reversal of 9976129 is 9216799.

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.

It is a cyclic number.

It is not a de Polignac number, because 9976129 - 2⁵ = 9976097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 232003 = 9976129 / (9 + 9 + 7 + 6 + 1 + 2 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9976429) 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, 115959 + ... + 116044.

It is an arithmetic number, because the mean of its divisors is an integer number (2552044).

Almost surely, 2^9976129 is an apocalyptic number.

It is an amenable number.

9976129 is a deficient number, since it is larger than the sum of its proper divisors (232047).

9976129 is a wasteful number, since it uses less digits than its factorization.

9976129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232046.

The product of its digits is 61236, while the sum is 43.

The square root of 9976129 is about 3158.5010685450. The cubic root of 9976129 is about 215.2719040482.

The spelling of 9976129 in words is "nine million, nine hundred seventy-six thousand, one hundred twenty-nine".