128703894 has 32 divisors (see below), whose sum is σ = 282514176. Its totient is φ = 38764320.

The previous prime is 128703893. The next prime is 128703899. The reversal of 128703894 is 498307821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128703893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5184 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (8828568).

Almost surely, 2^128703894 is an apocalyptic number.

128703894 is an abundant number, since it is smaller than the sum of its proper divisors (153810282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128703894 is a wasteful number, since it uses less digits than its factorization.

128703894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11860.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 128703894 is about 11344.7738628851. The cubic root of 128703894 is about 504.8905347157.

The spelling of 128703894 in words is "one hundred twenty-eight million, seven hundred three thousand, eight hundred ninety-four".