128471703 has 16 divisors (see below), whose sum is σ = 182432736. Its totient is φ = 80138240.

The previous prime is 128471689. The next prime is 128471729. The reversal of 128471703 is 307174821.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 128471703 - 2⁹ = 128471191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128471743) 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, 1543 + ... + 16103.

It is an arithmetic number, because the mean of its divisors is an integer number (11402046).

Almost surely, 2^128471703 is an apocalyptic number.

128471703 is a deficient number, since it is larger than the sum of its proper divisors (53961033).

128471703 is a wasteful number, since it uses less digits than its factorization.

128471703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14754.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 128471703 is about 11334.5358528702. The cubic root of 128471703 is about 504.5867324427.

The spelling of 128471703 in words is "one hundred twenty-eight million, four hundred seventy-one thousand, seven hundred three".