128887803 has 24 divisors (see below), whose sum is σ = 210103920. Its totient is φ = 75418560.

The previous prime is 128887799. The next prime is 128887859. The reversal of 128887803 is 308788821.

It is a happy number.

It is not a de Polignac number, because 128887803 - 2² = 128887799 is a prime.

It is a super-2 number, since 2×128887803² = 33224131524333618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128887303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19576 + ... + 25317.

It is an arithmetic number, because the mean of its divisors is an integer number (8754330).

Almost surely, 2^128887803 is an apocalyptic number.

128887803 is a deficient number, since it is larger than the sum of its proper divisors (81216117).

128887803 is a wasteful number, since it uses less digits than its factorization.

128887803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44939 (or 44936 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The square root of 128887803 is about 11352.8764196568. The cubic root of 128887803 is about 505.1309048611.

The spelling of 128887803 in words is "one hundred twenty-eight million, eight hundred eighty-seven thousand, eight hundred three".