128327693 has 8 divisors (see below), whose sum is σ = 142657536. Its totient is φ = 114634800.

The previous prime is 128327687. The next prime is 128327699. The reversal of 128327693 is 396723821.

It is an interprime number because it is at equal distance from previous prime (128327687) and next prime (128327699).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128327693 - 2⁴ = 128327677 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 128327693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128327699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158813 + ... + 159618.

It is an arithmetic number, because the mean of its divisors is an integer number (17832192).

Almost surely, 2^128327693 is an apocalyptic number.

128327693 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

128327693 is a deficient number, since it is larger than the sum of its proper divisors (14329843).

128327693 is a wasteful number, since it uses less digits than its factorization.

128327693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318475.

The product of its digits is 108864, while the sum is 41.

The square root of 128327693 is about 11328.1813633081. The cubic root of 128327693 is about 504.3981235845.

The spelling of 128327693 in words is "one hundred twenty-eight million, three hundred twenty-seven thousand, six hundred ninety-three".