128806874 has 16 divisors (see below), whose sum is σ = 221937408. Its totient is φ = 54921552.

The previous prime is 128806859. The next prime is 128806889. The reversal of 128806874 is 478608821.

It is an interprime number because it is at equal distance from previous prime (128806859) and next prime (128806889).

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 7 ways as a sum of consecutive naturals, for example, 20594 + ... + 26109.

It is an arithmetic number, because the mean of its divisors is an integer number (13871088).

Almost surely, 2^128806874 is an apocalyptic number.

128806874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128806874 is a deficient number, since it is larger than the sum of its proper divisors (93130534).

128806874 is a wasteful number, since it uses less digits than its factorization.

128806874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46909.

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 128806874 is about 11349.3116090801. The cubic root of 128806874 is about 505.0251583715.

The spelling of 128806874 in words is "one hundred twenty-eight million, eight hundred six thousand, eight hundred seventy-four".