128622698 has 8 divisors (see below), whose sum is σ = 193189860. Its totient is φ = 64226080.

The previous prime is 128622643. The next prime is 128622701. The reversal of 128622698 is 896226821.

It can be written as a sum of positive squares in 2 ways, for example, as 119399329 + 9223369 = 10927^2 + 3037^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40733 + ... + 43776.

Almost surely, 2^128622698 is an apocalyptic number.

128622698 is a deficient number, since it is larger than the sum of its proper divisors (64567162).

128622698 is an equidigital number, since it uses as much as digits as its factorization.

128622698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85272.

The product of its digits is 165888, while the sum is 44.

The square root of 128622698 is about 11341.1947342421. The cubic root of 128622698 is about 504.7843381987.

The spelling of 128622698 in words is "one hundred twenty-eight million, six hundred twenty-two thousand, six hundred ninety-eight".