128793854 has 24 divisors (see below), whose sum is σ = 225309600. Its totient is φ = 55055616.

The previous prime is 128793823. The next prime is 128793877. The reversal of 128793854 is 458397821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128793799 and 128793808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42539 + ... + 45465.

It is an arithmetic number, because the mean of its divisors is an integer number (9387900).

Almost surely, 2^128793854 is an apocalyptic number.

128793854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128793854 is a deficient number, since it is larger than the sum of its proper divisors (96515746).

128793854 is a wasteful number, since it uses less digits than its factorization.

128793854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392 (or 3385 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 128793854 is about 11348.7379915125. The cubic root of 128793854 is about 505.0081415542.

It can be divided in two parts, 12879 and 3854, that multiplied together give a triangular number (49635666 = T₉₉₆₃).

The spelling of 128793854 in words is "one hundred twenty-eight million, seven hundred ninety-three thousand, eight hundred fifty-four".