128698370 has 8 divisors (see below), whose sum is σ = 231657084. Its totient is φ = 51479344.

The previous prime is 128698351. The next prime is 128698399. The reversal of 128698370 is 73896821.

It can be written as a sum of positive squares in 2 ways, for example, as 128618281 + 80089 = 11341^2 + 283^2 .

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, 6434909 + ... + 6434928.

Almost surely, 2^128698370 is an apocalyptic number.

128698370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128698370 is a deficient number, since it is larger than the sum of its proper divisors (102958714).

128698370 is a wasteful number, since it uses less digits than its factorization.

128698370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12869844.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 128698370 is about 11344.5304001532. The cubic root of 128698370 is about 504.8833112740.

The spelling of 128698370 in words is "one hundred twenty-eight million, six hundred ninety-eight thousand, three hundred seventy".