7980129 has 12 divisors (see below), whose sum is σ = 11611600. Its totient is φ = 5280984.

The previous prime is 7980121. The next prime is 7980143. The reversal of 7980129 is 9210897.

It is a happy number.

It is not a de Polignac number, because 7980129 - 2³ = 7980121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7980093 and 7980102.

It is not an unprimeable number, because it can be changed into a prime (7980121) 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 11 ways as a sum of consecutive naturals, for example, 1939 + ... + 4440.

Almost surely, 2^7980129 is an apocalyptic number.

It is an amenable number.

7980129 is a deficient number, since it is larger than the sum of its proper divisors (3631471).

7980129 is a wasteful number, since it uses less digits than its factorization.

7980129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6524 (or 6521 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 7980129 is about 2824.9122110253. The cubic root of 7980129 is about 199.8342710408.

It can be divided in two parts, 79 and 80129, that added together give a palindrome (80208).

The spelling of 7980129 in words is "seven million, nine hundred eighty thousand, one hundred twenty-nine".