128650706 has 8 divisors (see below), whose sum is σ = 193416960. Its totient is φ = 64178388.

The previous prime is 128650693. The next prime is 128650721. The reversal of 128650706 is 607056821.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72386 + ... + 74141.

It is an arithmetic number, because the mean of its divisors is an integer number (24177120).

Almost surely, 2^128650706 is an apocalyptic number.

128650706 is a deficient number, since it is larger than the sum of its proper divisors (64766254).

128650706 is a wasteful number, since it uses less digits than its factorization.

128650706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146968.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 128650706 is about 11342.4294575721. The cubic root of 128650706 is about 504.8209750025.

The spelling of 128650706 in words is "one hundred twenty-eight million, six hundred fifty thousand, seven hundred six".