128592479 has 2 divisors, whose sum is σ = 128592480. Its totient is φ = 128592478.

The previous prime is 128592449. The next prime is 128592509. The reversal of 128592479 is 974295821.

It is a balanced prime because it is at equal distance from previous prime (128592449) and next prime (128592509).

It is an emirp because it is prime and its reverse (974295821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128592479 - 2¹⁶ = 128526943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128592449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64296239 + 64296240.

It is an arithmetic number, because the mean of its divisors is an integer number (64296240).

Almost surely, 2^128592479 is an apocalyptic number.

128592479 is a deficient number, since it is larger than the sum of its proper divisors (1).

128592479 is an equidigital number, since it uses as much as digits as its factorization.

128592479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 128592479 is about 11339.8623889358. The cubic root of 128592479 is about 504.7448032568.

The spelling of 128592479 in words is "one hundred twenty-eight million, five hundred ninety-two thousand, four hundred seventy-nine".