128864703 has 16 divisors (see below), whose sum is σ = 188597376. Its totient is φ = 77617440.

The previous prime is 128864693. The next prime is 128864711. The reversal of 128864703 is 307468821.

It is not a de Polignac number, because 128864703 - 2⁹ = 128864191 is a prime.

It is a super-2 number, since 2×128864703² = 33212223358556418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128864753) 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, 6600 + ... + 17357.

It is an arithmetic number, because the mean of its divisors is an integer number (11787336).

Almost surely, 2^128864703 is an apocalyptic number.

128864703 is a deficient number, since it is larger than the sum of its proper divisors (59732673).

128864703 is a wasteful number, since it uses less digits than its factorization.

128864703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24134.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 128864703 is about 11351.8590107524. The cubic root of 128864703 is about 505.1007255868.

The spelling of 128864703 in words is "one hundred twenty-eight million, eight hundred sixty-four thousand, seven hundred three".