128296766 has 8 divisors (see below), whose sum is σ = 207248664. Its totient is φ = 59213880.

The previous prime is 128296757. The next prime is 128296781. The reversal of 128296766 is 667692821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 128296766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2467220 + ... + 2467271.

It is an arithmetic number, because the mean of its divisors is an integer number (25906083).

Almost surely, 2^128296766 is an apocalyptic number.

128296766 is a deficient number, since it is larger than the sum of its proper divisors (78951898).

128296766 is a wasteful number, since it uses less digits than its factorization.

128296766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934506.

The product of its digits is 435456, while the sum is 47.

The square root of 128296766 is about 11326.8162340527. The cubic root of 128296766 is about 504.3576003123.

The spelling of 128296766 in words is "one hundred twenty-eight million, two hundred ninety-six thousand, seven hundred sixty-six".