128594407 has 2 divisors, whose sum is σ = 128594408. Its totient is φ = 128594406.

The previous prime is 128594387. The next prime is 128594429. The reversal of 128594407 is 704495821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128594407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128594407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128594437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64297203 + 64297204.

It is an arithmetic number, because the mean of its divisors is an integer number (64297204).

Almost surely, 2^128594407 is an apocalyptic number.

128594407 is a deficient number, since it is larger than the sum of its proper divisors (1).

128594407 is an equidigital number, since it uses as much as digits as its factorization.

128594407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 128594407 is about 11339.9473984671. The cubic root of 128594407 is about 504.7473258074.

The spelling of 128594407 in words is "one hundred twenty-eight million, five hundred ninety-four thousand, four hundred seven".