7924289 has 2 divisors, whose sum is σ = 7924290. Its totient is φ = 7924288.

The previous prime is 7924271. The next prime is 7924307. The reversal of 7924289 is 9824297.

It is a balanced prime because it is at equal distance from previous prime (7924271) and next prime (7924307).

It can be written as a sum of positive squares in only one way, i.e., 7924225 + 64 = 2815^2 + 8^2 .

It is a cyclic number.

It is not a de Polignac number, because 7924289 - 2¹² = 7920193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7924229) 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, 3962144 + 3962145.

It is an arithmetic number, because the mean of its divisors is an integer number (3962145).

Almost surely, 2^7924289 is an apocalyptic number.

It is an amenable number.

7924289 is a deficient number, since it is larger than the sum of its proper divisors (1).

7924289 is an equidigital number, since it uses as much as digits as its factorization.

7924289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 7924289 is about 2815.0113676502. The cubic root of 7924289 is about 199.3670741372.

The spelling of 7924289 in words is "seven million, nine hundred twenty-four thousand, two hundred eighty-nine".