7973129 has 2 divisors, whose sum is σ = 7973130. Its totient is φ = 7973128.

The previous prime is 7973123. The next prime is 7973131. The reversal of 7973129 is 9213797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4080400 + 3892729 = 2020^2 + 1973^2 .

It is an emirp because it is prime and its reverse (9213797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7973129 - 2¹² = 7969033 is a prime.

Together with 7973131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7973092 and 7973101.

It is not a weakly prime, because it can be changed into another prime (7973123) 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 as a sum of consecutive naturals, namely, 3986564 + 3986565.

It is an arithmetic number, because the mean of its divisors is an integer number (3986565).

Almost surely, 2^7973129 is an apocalyptic number.

It is an amenable number.

7973129 is a deficient number, since it is larger than the sum of its proper divisors (1).

7973129 is an equidigital number, since it uses as much as digits as its factorization.

7973129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 38.

The square root of 7973129 is about 2823.6729626499. The cubic root of 7973129 is about 199.7758238191.

The spelling of 7973129 in words is "seven million, nine hundred seventy-three thousand, one hundred twenty-nine".