128608373 has 4 divisors (see below), whose sum is σ = 129351948. Its totient is φ = 127864800.

The previous prime is 128608357. The next prime is 128608393. The reversal of 128608373 is 373806821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47914084 + 80694289 = 6922^2 + 8983^2 .

It is a cyclic number.

It is not a de Polignac number, because 128608373 - 2⁴ = 128608357 is a prime.

It is a super-2 number, since 2×128608373² = 33080227211414258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128608393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371528 + ... + 371873.

It is an arithmetic number, because the mean of its divisors is an integer number (32337987).

Almost surely, 2^128608373 is an apocalyptic number.

It is an amenable number.

128608373 is a deficient number, since it is larger than the sum of its proper divisors (743575).

128608373 is an equidigital number, since it uses as much as digits as its factorization.

128608373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743574.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 128608373 is about 11340.5631694374. The cubic root of 128608373 is about 504.7655978462.

The spelling of 128608373 in words is "one hundred twenty-eight million, six hundred eight thousand, three hundred seventy-three".