128833802 has 4 divisors (see below), whose sum is σ = 193250706. Its totient is φ = 64416900.

The previous prime is 128833801. The next prime is 128833807. The reversal of 128833802 is 208338821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 208338821 = 103 ⋅2022707.

It can be written as a sum of positive squares in only one way, i.e., 64657681 + 64176121 = 8041^2 + 8011^2 .

It is not an unprimeable number, because it can be changed into a prime (128833801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32208449 + ... + 32208452.

Almost surely, 2^128833802 is an apocalyptic number.

128833802 is a deficient number, since it is larger than the sum of its proper divisors (64416904).

128833802 is an equidigital number, since it uses as much as digits as its factorization.

128833802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64416903.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 128833802 is about 11350.4978745428. The cubic root of 128833802 is about 505.0603489621.

The spelling of 128833802 in words is "one hundred twenty-eight million, eight hundred thirty-three thousand, eight hundred two".