128673700 has 36 divisors (see below), whose sum is σ = 293922160. Its totient is φ = 48759840.

The previous prime is 128673691. The next prime is 128673709. The reversal of 128673700 is 7376821.

It is an interprime number because it is at equal distance from previous prime (128673691) and next prime (128673709).

It is not an unprimeable number, because it can be changed into a prime (128673709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31962 + ... + 35761.

Almost surely, 2^128673700 is an apocalyptic number.

128673700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128673700 is an abundant number, since it is smaller than the sum of its proper divisors (165248460).

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

128673700 is a wasteful number, since it uses less digits than its factorization.

128673700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67756 (or 67749 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 128673700 is about 11343.4430399240. The cubic root of 128673700 is about 504.8510491010.

The spelling of 128673700 in words is "one hundred twenty-eight million, six hundred seventy-three thousand, seven hundred".